diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalFooterTagHelper.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalFooterTagHelper.cs
index 2df1bf158a..7784f63671 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalFooterTagHelper.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalFooterTagHelper.cs
@@ -1,8 +1,13 @@
-namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Modal
+using Microsoft.AspNetCore.Razor.TagHelpers;
+
+namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Modal
 {
+    [HtmlTargetElement("abp-modal")]
+    [HtmlTargetElement("abp-modal-footer")]
     public class AbpModalFooterTagHelper : AbpTagHelper<AbpModalFooterTagHelper, AbpModalFooterTagHelperService>
     {
         public AbpModalButtons Buttons { get; set; }
+        public ButtonsAlign ButtonAlignment { get; set; } = ButtonsAlign.Default;
 
         public AbpModalFooterTagHelper(AbpModalFooterTagHelperService tagHelperService)
             : base(tagHelperService)
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalFooterTagHelperService.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalFooterTagHelperService.cs
index cff4646917..38cac85a6d 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalFooterTagHelperService.cs
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/AbpModalFooterTagHelperService.cs
@@ -24,6 +24,7 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Modal
             {
                 output.PostContent.SetHtmlContent(CreateContent());
             }
+            ProcessButtonsAlignment(output);
         }
 
         protected virtual string CreateContent()
@@ -49,9 +50,18 @@ namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Modal
                     sb.AppendLine("<button type=\"button\" class=\"btn btn-secondary\" data-dismiss=\"modal\">" + _localizer["Close"] + "</button>");
                     sb.AppendLine("<button type=\"submit\" class=\"btn btn-primary\" data-busy-text=\"" + _localizer["SavingWithThreeDot"] + "\"><i class=\"fa fa-check\"></i> <span>" + _localizer["Save"] + "</span></button>");
                     break;
-            }
-            
+            }
+
             return sb.ToString();
         }
+
+        protected virtual void ProcessButtonsAlignment(TagHelperOutput output)
+        {
+            if (TagHelper.ButtonAlignment == ButtonsAlign.Default)
+            {
+                return;
+            }
+            output.Attributes.AddClass("justify-content-" + TagHelper.ButtonAlignment.ToString().ToLowerInvariant());
+        }
     }
 }
\ No newline at end of file
diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/ButtonsAlign.cs b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/ButtonsAlign.cs
new file mode 100644
index 0000000000..7f6ba7b984
--- /dev/null
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bootstrap/TagHelpers/Modal/ButtonsAlign.cs
@@ -0,0 +1,12 @@
+namespace Volo.Abp.AspNetCore.Mvc.UI.Bootstrap.TagHelpers.Modal
+{
+    public enum ButtonsAlign
+    {
+        Default,
+        Start,
+        Center,
+        Around,
+        Between,
+        End
+    }
+}