diff --git a/app/views/tasks/show.html.erb b/app/views/tasks/show.html.erb
index ea0263a1..ef93cef5 100644
--- a/app/views/tasks/show.html.erb
+++ b/app/views/tasks/show.html.erb
@@ -18,6 +18,11 @@
   <% end %>
 </div>
 
+<div class="my-3">
+  <p class="h5 fw-bold mb-2">状態</p>
+  <%= @task.state.name %>
+</div>
+
 <div class="my-3">
   <p class="h5 fw-bold mb-2">説明</p>
   <div class="markdown-body">
diff --git a/test/models/task_test.rb b/test/models/task_test.rb
index 91fb3e8e..e873306f 100644
--- a/test/models/task_test.rb
+++ b/test/models/task_test.rb
@@ -30,6 +30,12 @@ def setup
     assert_not Task.new(task).save
   end
 
+  test "should not create task without task_state_id" do
+    task = @task_template.clone
+    task[:task_state_id] = nil
+    assert_not Task.new(task).save
+  end
+
   test "should delete task" do
     task = @task_template.clone
     task = Task.create(task)