diff --git a/src/main/java/org/ntlab/acanthus_server/models/Accounts.java b/src/main/java/org/ntlab/acanthus_server/models/Accounts.java
new file mode 100644
index 0000000..2fb9189
--- /dev/null
+++ b/src/main/java/org/ntlab/acanthus_server/models/Accounts.java
@@ -0,0 +1,30 @@
+package org.ntlab.acanthus_server.models;
+
+import org.ntlab.acanthus_server.entities.Account;
+
+import java.util.HashMap;
+
+/*
+* アカウント管理シングルトン
+*
+*/
+public class Accounts {
+    private static Accounts _theInstance = null;
+    private HashMap<Integer, Account> _accountHashMap = new HashMap<>();
+
+    //-----------------------------------------------------------------
+    // インスタンス生成禁止
+    private  Accounts(){}
+
+    //-----------------------------------------------------------------
+    // シングルトン取得
+    //-----------------------------------------------------------------
+    public  Accounts getInstance(){
+        if(_theInstance == null) _theInstance = new Accounts();
+        return _theInstance;
+    }
+
+    //-----------------------------------------------------------------
+
+
+}