diff --git a/app/controllers/organizations/organization_users_controller.rb b/app/controllers/organizations/organization_users_controller.rb
index d9035dc14..98f2e1656 100644
--- a/app/controllers/organizations/organization_users_controller.rb
+++ b/app/controllers/organizations/organization_users_controller.rb
@@ -4,17 +4,30 @@ class Organizations::OrganizationUsersController < Organizations::BaseController
   before_action :check_user_can_edit_org, only: [:destroy]
 
   def index
-    @organization_users = @organization.organization_users.includes(:user)
+    # @organization_users = @organization.organization_users.includes(:user)
+    # if params[:search].present?
+    #   search = params[:search].to_s.downcase
+    #   user_condition_users = User.like(search).to_sql
+    #   team_condition_teams = User.joins(:teams).merge(@organization.teams.like(search)).to_sql
+    #   users = User.from("( #{user_condition_users} UNION #{team_condition_teams }) AS users")
+    #
+    #   @organization_users = @organization_users.where(user_id: users).distinct
+    # end
+    #
+    # @organization_users = kaminari_paginate(@organization_users)
+
+    organization_user_ids = @organization.organization_users.pluck(:user_id).uniq
+    project_member_user_ids = @organization.projects.joins(:members).pluck("members.user_id").uniq
+    users = User.where(id: organization_user_ids + project_member_user_ids)
     if params[:search].present?
       search = params[:search].to_s.downcase
       user_condition_users = User.like(search).to_sql
       team_condition_teams = User.joins(:teams).merge(@organization.teams.like(search)).to_sql
-      users = User.from("( #{user_condition_users} UNION #{team_condition_teams }) AS users")
+      user_ids = User.from("( #{user_condition_users} UNION #{team_condition_teams }) AS users").pluck(:id)
 
-      @organization_users = @organization_users.where(user_id: users).distinct
+      users = users.where(id: user_ids)
     end
-
-    @organization_users = kaminari_paginate(@organization_users)
+    @users = kaminari_paginate(users)
   end
 
   def pm_check_user
diff --git a/app/views/organizations/organization_users/_detail.json.jbuilder b/app/views/organizations/organization_users/_detail.json.jbuilder
index c7572971b..b456b35cd 100644
--- a/app/views/organizations/organization_users/_detail.json.jbuilder
+++ b/app/views/organizations/organization_users/_detail.json.jbuilder
@@ -1,7 +1,7 @@
-json.id org_user.id
+json.id user&.id
 json.user do
-  json.partial! "organizations/user_detail", user: org_user.user
+  json.partial! "organizations/user_detail", user: user
 end
 
-json.team_names org_user.teams.pluck(:nickname)
-json.created_at org_user.created_at.strftime("%Y-%m-%d")
+json.team_names user.teams.where("teams.organization_id=?", organization.id).pluck(:nickname)
+json.created_at user.created_on.strftime("%Y-%m-%d")
diff --git a/app/views/organizations/organization_users/index.json.jbuilder b/app/views/organizations/organization_users/index.json.jbuilder
index 9f1f278bc..9241af184 100644
--- a/app/views/organizations/organization_users/index.json.jbuilder
+++ b/app/views/organizations/organization_users/index.json.jbuilder
@@ -1,5 +1,5 @@
-json.total_count @organization_users.total_count
-json.organization_users @organization_users do |org_user|
-  next if org_user.user.blank?
-  json.partial! "detail", org_user: org_user, organization: @organization
+json.total_count @users.total_count
+json.organization_users @users do |user|
+  next if user.blank?
+  json.partial! "detail", user: user, organization: @organization
 end