diff --git a/app/src/main/java/com/example/nemophila/entities/ErrorType.java b/app/src/main/java/com/example/nemophila/entities/ErrorType.java
new file mode 100644
index 0000000..4ab24d7
--- /dev/null
+++ b/app/src/main/java/com/example/nemophila/entities/ErrorType.java
@@ -0,0 +1,19 @@
+package com.example.nemophila.entities;
+
+public enum ErrorType {
+    ResponseError("レスポンスエラー"),
+    NetworkError("ネットワークエラー"),
+    InvalidToken("トークンが不一致"),
+    UnknownError("不明なエラー"),
+    ResponseNoyFound("リソースが見つかりません");
+
+    private final String text;
+
+    ErrorType(String text) {
+        this.text = text;
+    }
+
+    public String getText() {
+        return text;
+    }
+}