diff --git a/common/data/src/main/java/org/thingsboard/server/common/data/query/RelationsQueryFilter.java b/common/data/src/main/java/org/thingsboard/server/common/data/query/RelationsQueryFilter.java
index 2bed46a63b..ea9f031de5 100644
--- a/common/data/src/main/java/org/thingsboard/server/common/data/query/RelationsQueryFilter.java
+++ b/common/data/src/main/java/org/thingsboard/server/common/data/query/RelationsQueryFilter.java
@@ -40,5 +40,6 @@ public class RelationsQueryFilter implements EntityFilter {
     private List<RelationEntityTypeFilter> filters;
     private int maxLevel;
     private boolean fetchLastLevelOnly;
+    private boolean negate;
 
 }
diff --git a/common/data/src/main/java/org/thingsboard/server/common/data/relation/RelationEntityTypeFilter.java b/common/data/src/main/java/org/thingsboard/server/common/data/relation/RelationEntityTypeFilter.java
index 6bac4c9a0f..18786250a5 100644
--- a/common/data/src/main/java/org/thingsboard/server/common/data/relation/RelationEntityTypeFilter.java
+++ b/common/data/src/main/java/org/thingsboard/server/common/data/relation/RelationEntityTypeFilter.java
@@ -17,7 +17,6 @@ package org.thingsboard.server.common.data.relation;
 
 import io.swagger.annotations.ApiModel;
 import io.swagger.annotations.ApiModelProperty;
-import lombok.AllArgsConstructor;
 import lombok.Data;
 import org.thingsboard.server.common.data.EntityType;
 
@@ -27,13 +26,25 @@ import java.util.List;
  * Created by ashvayka on 02.05.17.
  */
 @Data
-@AllArgsConstructor
 @ApiModel
 public class RelationEntityTypeFilter {
 
+    public RelationEntityTypeFilter(String relationType, List<EntityType> entityTypes) {
+        this(relationType, entityTypes, false);
+    }
+
+    public RelationEntityTypeFilter(String relationType, List<EntityType> entityTypes, boolean negate) {
+        this.relationType = relationType;
+        this.entityTypes = entityTypes;
+        this.negate = negate;
+    }
+
     @ApiModelProperty(position = 1, value = "Type of the relation between root entity and other entity (e.g. 'Contains' or 'Manages').", example = "Contains")
     private String relationType;
 
     @ApiModelProperty(position = 2, value = "Array of entity types to filter the related entities (e.g. 'DEVICE', 'ASSET').")
     private List<EntityType> entityTypes;
+
+    @ApiModelProperty(position = 3, value = "Negate relation type between root entity and other entity.")
+    private boolean negate;
 }
diff --git a/dao/src/main/java/org/thingsboard/server/dao/sql/query/DefaultEntityQueryRepository.java b/dao/src/main/java/org/thingsboard/server/dao/sql/query/DefaultEntityQueryRepository.java
index 1963190aa5..be91d78704 100644
--- a/dao/src/main/java/org/thingsboard/server/dao/sql/query/DefaultEntityQueryRepository.java
+++ b/dao/src/main/java/org/thingsboard/server/dao/sql/query/DefaultEntityQueryRepository.java
@@ -704,10 +704,16 @@ public class DefaultEntityQueryRepository implements EntityQueryRepository {
                     .append(entityFilter.getDirection().equals(EntitySearchDirection.FROM) ? "to" : "from")
                     .append("_type in (:where_entity_types").append(")");
             ctx.addStringListParameter("where_entity_types", Arrays.stream(RELATION_QUERY_ENTITY_TYPES).map(EntityType::name).collect(Collectors.toList()));
-        }
-
-        if (!noConditions && !single) {
-            whereFilter = new StringBuilder().append("(").append(whereFilter).append(")");
+        } else {
+            if (!single) {
+                whereFilter = new StringBuilder()
+                        .append(entityFilter.isNegate() ? " NOT (" : "(")
+                        .append(whereFilter).append(")");
+            } else if (entityFilter.isNegate()) {
+                whereFilter = new StringBuilder()
+                        .append(" NOT ")
+                        .append(whereFilter).append(")");
+            }
         }
 
         if (entityFilter.isFetchLastLevelOnly()) {
@@ -743,8 +749,11 @@ public class DefaultEntityQueryRepository implements EntityQueryRepository {
         boolean hasRelationType = !StringUtils.isEmpty(relationType);
         if (hasRelationType) {
             ctx.addStringParameter("where_relation_type" + entityTypeFilterIdx, relationType);
-            whereFilter
-                    .append("re.relation_type = :where_relation_type").append(entityTypeFilterIdx);
+            if (etf.isNegate()) {
+                whereFilter.append("re.relation_type != :where_relation_type").append(entityTypeFilterIdx);
+            } else {
+                whereFilter.append("re.relation_type = :where_relation_type").append(entityTypeFilterIdx);
+            }
         }
         if (!whereEntityTypes.isEmpty()) {
             if (hasRelationType) {
diff --git a/ui-ngx/src/app/modules/home/components/entity/entity-filter.component.html b/ui-ngx/src/app/modules/home/components/entity/entity-filter.component.html
index 6f588f34e5..85ac9febf5 100644
--- a/ui-ngx/src/app/modules/home/components/entity/entity-filter.component.html
+++ b/ui-ngx/src/app/modules/home/components/entity/entity-filter.component.html
@@ -185,6 +185,9 @@
                    formControlName="maxLevel">
           </mat-form-field>
         </div>
+        <mat-slide-toggle formControlName="negate" *ngIf="this.filterFormGroup.get('filters').value.length > 1">
+          {{ 'relation.negate-all-relations' | translate }}
+        </mat-slide-toggle>
         <div class="mat-caption" style="padding-bottom: 10px; color: rgba(0,0,0,0.57);" translate>relation.relation-filters</div>
         <tb-relation-filters
           [allowedEntityTypes]="allowedEntityTypes"
diff --git a/ui-ngx/src/app/modules/home/components/entity/entity-filter.component.ts b/ui-ngx/src/app/modules/home/components/entity/entity-filter.component.ts
index 83a2c79d7d..a3b561d8bd 100644
--- a/ui-ngx/src/app/modules/home/components/entity/entity-filter.component.ts
+++ b/ui-ngx/src/app/modules/home/components/entity/entity-filter.component.ts
@@ -173,7 +173,8 @@ export class EntityFilterComponent implements ControlValueAccessor, OnInit {
           rootEntity: [filter ? filter.rootEntity : null, (filter && filter.rootStateEntity) ? [] : [Validators.required]],
           direction: [filter ? filter.direction : EntitySearchDirection.FROM, [Validators.required]],
           maxLevel: [filter ? filter.maxLevel : 1, []],
-          fetchLastLevelOnly: [filter ? filter.fetchLastLevelOnly : false, []]
+          fetchLastLevelOnly: [filter ? filter.fetchLastLevelOnly : false, []],
+          negate: [filter ? filter.negate : false, []]
         });
         this.filterFormGroup.get('rootStateEntity').valueChanges.subscribe((rootStateEntity: boolean) => {
           this.filterFormGroup.get('rootEntity').setValidators(rootStateEntity ? [] : [Validators.required]);
diff --git a/ui-ngx/src/app/modules/home/components/relation/relation-filters.component.html b/ui-ngx/src/app/modules/home/components/relation/relation-filters.component.html
index 1f5d6273ec..095cfe6eba 100644
--- a/ui-ngx/src/app/modules/home/components/relation/relation-filters.component.html
+++ b/ui-ngx/src/app/modules/home/components/relation/relation-filters.component.html
@@ -28,24 +28,29 @@
       <div class="row" fxFlex fxLayout="row"
            fxLayoutAlign="start center" formArrayName="relationFilters"
            *ngFor="let relationFilterControl of relationFiltersFormArray().controls; let $index = index">
-        <div class="mat-elevation-z1" fxFlex fxLayout="row" fxLayoutAlign="start center">
-          <tb-relation-type-autocomplete
-            class="cell" style="width: 200px; min-width: 200px;"
-            [formControl]="relationFilterControl.get('relationType')">
-          </tb-relation-type-autocomplete>
-          <tb-entity-type-list class="cell" fxFlex
-            [allowedEntityTypes]="allowedEntityTypes"
-            [formControl]="relationFilterControl.get('entityTypes')">
-          </tb-entity-type-list>
-          <button mat-icon-button color="primary"
-                  type="button"
-                  style="width: 40px; min-width: 40px;"
-                  (click)="removeFilter($index)"
-                  [disabled]="isLoading$ | async"
-                  matTooltip="{{ 'relation.remove-relation-filter' | translate }}"
-                  matTooltipPosition="above">
-            <mat-icon>close</mat-icon>
-          </button>
+        <div class="mat-elevation-z1" fxFlex fxLayout="column" fxLayoutAlign="space-between start">
+          <div fxFlex fxLayout="row" fxLayoutAlign="start center">
+            <tb-relation-type-autocomplete
+              class="cell" style="width: 200px; min-width: 200px;"
+              [formControl]="relationFilterControl.get('relationType')">
+            </tb-relation-type-autocomplete>
+            <tb-entity-type-list class="cell" fxFlex
+              [allowedEntityTypes]="allowedEntityTypes"
+              [formControl]="relationFilterControl.get('entityTypes')">
+            </tb-entity-type-list>
+            <button mat-icon-button color="primary"
+                    type="button"
+                    style="width: 40px; min-width: 40px;"
+                    (click)="removeFilter($index)"
+                    [disabled]="isLoading$ | async"
+                    matTooltip="{{ 'relation.remove-relation-filter' | translate }}"
+                    matTooltipPosition="above">
+              <mat-icon>close</mat-icon>
+            </button>
+          </div>
+          <mat-slide-toggle [formControl]="relationFilterControl.get('negate')" style="margin-left: 10px;">
+              {{ 'relation.negate-relation' | translate }}
+          </mat-slide-toggle>
         </div>
       </div>
     </div>
diff --git a/ui-ngx/src/app/modules/home/components/relation/relation-filters.component.ts b/ui-ngx/src/app/modules/home/components/relation/relation-filters.component.ts
index 911aa4fe30..71d4350b4f 100644
--- a/ui-ngx/src/app/modules/home/components/relation/relation-filters.component.ts
+++ b/ui-ngx/src/app/modules/home/components/relation/relation-filters.component.ts
@@ -104,7 +104,8 @@ export class RelationFiltersComponent extends PageComponent implements ControlVa
     const relationFiltersFormArray = this.relationFiltersFormGroup.get('relationFilters') as FormArray;
     const filter: RelationEntityTypeFilter = {
       relationType: null,
-      entityTypes: []
+      entityTypes: [],
+      negate: false
     };
     relationFiltersFormArray.push(this.createRelationFilterFormGroup(filter));
   }
@@ -112,7 +113,8 @@ export class RelationFiltersComponent extends PageComponent implements ControlVa
   private createRelationFilterFormGroup(filter: RelationEntityTypeFilter): AbstractControl {
     return this.fb.group({
       relationType: [filter ? filter.relationType : null],
-      entityTypes: [filter ? filter.entityTypes : []]
+      entityTypes: [filter ? filter.entityTypes : []],
+      negate: [filter ? filter.negate : false],
     });
   }
 
diff --git a/ui-ngx/src/app/shared/models/alias.models.ts b/ui-ngx/src/app/shared/models/alias.models.ts
index f67c0d50a7..c3322cda16 100644
--- a/ui-ngx/src/app/shared/models/alias.models.ts
+++ b/ui-ngx/src/app/shared/models/alias.models.ts
@@ -114,6 +114,7 @@ export interface RelationsQueryFilter {
   filters?: Array<RelationEntityTypeFilter>;
   maxLevel?: number;
   fetchLastLevelOnly?: boolean;
+  negate?: boolean;
 }
 
 export interface EntitySearchQueryFilter {
diff --git a/ui-ngx/src/app/shared/models/relation.models.ts b/ui-ngx/src/app/shared/models/relation.models.ts
index e42b915e9e..27920f275a 100644
--- a/ui-ngx/src/app/shared/models/relation.models.ts
+++ b/ui-ngx/src/app/shared/models/relation.models.ts
@@ -55,6 +55,7 @@ export const directionTypeTranslations = new Map<EntitySearchDirection, string>(
 export interface RelationEntityTypeFilter {
   relationType: string;
   entityTypes: Array<EntityType>;
+  negate?: boolean;
 }
 
 export interface RelationsSearchParameters {
diff --git a/ui-ngx/src/assets/locale/locale.constant-en_US.json b/ui-ngx/src/assets/locale/locale.constant-en_US.json
index e8c322c650..b053cd83a6 100644
--- a/ui-ngx/src/assets/locale/locale.constant-en_US.json
+++ b/ui-ngx/src/assets/locale/locale.constant-en_US.json
@@ -2840,7 +2840,9 @@
         "relation-filters": "Relation filters",
         "additional-info": "Additional info (JSON)",
         "invalid-additional-info": "Unable to parse additional info json.",
-        "no-relations-text": "No relations found"
+        "no-relations-text": "No relations found",
+        "negate-all-relations": "Negate all relations (NOT condition)",
+        "negate-relation": "Negate this relation (NOT condition)"
     },
     "resource": {
         "add": "Add Resource",