diff --git a/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoOrganizationUnitRepository.cs b/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoOrganizationUnitRepository.cs
index 943d570153..448ee5754e 100644
--- a/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoOrganizationUnitRepository.cs
+++ b/modules/identity/src/Volo.Abp.Identity.MongoDB/Volo/Abp/Identity/MongoDB/MongoOrganizationUnitRepository.cs
@@ -122,7 +122,8 @@ namespace Volo.Abp.Identity.MongoDB
                     !filter.IsNullOrWhiteSpace(),
                     u =>
                         u.UserName.Contains(filter) ||
-                        u.Email.Contains(filter)
+                        u.Email.Contains(filter) ||
+                        (u.PhoneNumber != null && u.PhoneNumber.Contains(filter))
                 )
                 .OrderBy(sorting ?? nameof(IdentityUser.UserName))
                 .As<IMongoQueryable<IdentityUser>>()