diff --git a/framework/src/Volo.Abp.Core/Volo/Abp/IO/FileHelper.cs b/framework/src/Volo.Abp.Core/Volo/Abp/IO/FileHelper.cs
index 0f4514a066..21ca7c2086 100644
--- a/framework/src/Volo.Abp.Core/Volo/Abp/IO/FileHelper.cs
+++ b/framework/src/Volo.Abp.Core/Volo/Abp/IO/FileHelper.cs
@@ -1,4 +1,7 @@
-using System.IO;
+using System;
+using System.IO;
+using System.Text;
+using System.Threading.Tasks;
 using JetBrains.Annotations;
 
 namespace Volo.Abp.IO
@@ -41,5 +44,35 @@ namespace Volo.Abp.IO
 
             return fileNameWithExtension.Substring(lastDotIndex + 1);
         }
+
+        /// <summary>
+        /// Opens a text file, reads all lines of the file, and then closes the file.
+        /// </summary>
+        /// <param name="path">The file to open for reading.</param>
+        /// <returns>A string containing all lines of the file.</returns>
+        public static async Task<string> ReadAllTextAsync(string path)
+        {
+            using (var reader = File.OpenText(path))
+            {
+                return await reader.ReadToEndAsync();
+            }
+        }
+
+        /// <summary>
+        /// Opens a text file, reads all lines of the file, and then closes the file.
+        /// </summary>
+        /// <param name="path">The file to open for reading.</param>
+        /// <returns>A string containing all lines of the file.</returns>
+        public static async Task<byte[]> ReadAllBytesAsync(string path)
+        {
+            using (var stream = File.Open(path, FileMode.Open))
+            {
+                var result = new byte[stream.Length];
+                await stream.ReadAsync(result, 0, (int)stream.Length);
+                return result;
+            }
+        }
+
+        //TODO: ReadAllLinesAsync
     }
 }
\ No newline at end of file
diff --git a/modules/docs/src/Volo.Docs.Domain/Volo/Docs/FileSystem/Documents/FileSystemDocumentStore.cs b/modules/docs/src/Volo.Docs.Domain/Volo/Docs/FileSystem/Documents/FileSystemDocumentStore.cs
index a0a341fa04..dccc99fc75 100644
--- a/modules/docs/src/Volo.Docs.Domain/Volo/Docs/FileSystem/Documents/FileSystemDocumentStore.cs
+++ b/modules/docs/src/Volo.Docs.Domain/Volo/Docs/FileSystem/Documents/FileSystemDocumentStore.cs
@@ -2,6 +2,7 @@
 using System.IO;
 using System.Threading.Tasks;
 using Volo.Abp.Domain.Services;
+using Volo.Abp.IO;
 using Volo.Docs.Documents;
 using Volo.Docs.FileSystem.Projects;
 using Volo.Docs.Projects;
@@ -15,7 +16,7 @@ namespace Volo.Docs.FileSystem.Documents
         public async Task<Document> GetDocument(Project project, string documentName, string version)
         {
             var path = Path.Combine(project.GetFileSystemPath(), documentName);
-            var content = File.ReadAllText(path); //TODO: async!
+            var content = await FileHelper.ReadAllTextAsync(path);
             var localDirectory = "";
 
             if (documentName.Contains("/"))
@@ -43,7 +44,7 @@ namespace Volo.Docs.FileSystem.Documents
         public async Task<DocumentResource> GetResource(Project project, string resourceName, string version)
         {
             var path = Path.Combine(project.GetFileSystemPath(), resourceName);
-            return new DocumentResource(File.ReadAllBytes(path));
+            return new DocumentResource(await FileHelper.ReadAllBytesAsync(path));
         }
     }
 }