diff --git a/app/Http/Controllers/Web/Contract/CreateController.php b/app/Http/Controllers/Web/Contract/CreateController.php
new file mode 100644
index 0000000..2d08e64
--- /dev/null
+++ b/app/Http/Controllers/Web/Contract/CreateController.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Http\Controllers\Web\Contract;
+
+use App\Codes\UserRole;
+use App\Http\Controllers\Web\WebController;
+use App\Logic\Contract\CreateManager;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+
+class CreateController extends WebController
+{
+    public function name(): string
+    {
+        return "契約新規登録";
+    }
+
+    public function description(): string
+    {
+        return "契約を新規登録する";
+    }
+
+    public function __construct(
+        protected CreateParam $param,
+        private CreateManager $manager
+    ) {
+        parent::__construct();
+        $this->roleAllow(UserRole::SUPER_ADMIN);
+    }
+
+    protected function run(Request $request): JsonResponse
+    {
+        $param = $this->param;
+
+        $messages = $this->manager->initForCreate()
+            ->fill($param->toArray())
+            ->create();
+
+        if (count($messages) !== 0) {
+            return $this->failedResponse([], $messages);
+        }
+
+        return $this->successResponse();
+    }
+}
diff --git a/app/Http/Controllers/Web/Contract/CreateParam.php b/app/Http/Controllers/Web/Contract/CreateParam.php
new file mode 100644
index 0000000..1af6046
--- /dev/null
+++ b/app/Http/Controllers/Web/Contract/CreateParam.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Http\Controllers\Web\Contract;
+
+use App\Http\Controllers\Web\BaseParam;
+use App\Models\Contract;
+
+/**
+ * @property string $name
+ * @property ?string $custom
+ */
+
+class CreateParam extends BaseParam
+{
+    public function rules(): array
+    {
+        return
+            [
+                Contract::COL_NAME_NAME => $this->str(),
+                Contract::COL_NAME_CUSTOM => $this->str(),
+            ];
+    }
+}
diff --git a/app/Logic/Contract/ContractManager.php b/app/Logic/Contract/ContractManager.php
new file mode 100644
index 0000000..2e304f2
--- /dev/null
+++ b/app/Logic/Contract/ContractManager.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Logic\Contract;
+
+use App\Models\Contract;
+use LogicException;
+
+abstract class ContractManager
+{
+
+    // ------------MEMBER----
+    protected Contract $contract;
+    protected bool $initialized = false;
+
+
+    // -------------PUBLIC--------
+    public function initById(string $id): static
+    {
+        $contract = Contract::findOrFail($id);
+        $this->contract = $contract;
+        $this->initialized = true;
+        return $this;
+    }
+
+    public function initForCreate(): static
+    {
+        $contract = new Contract();
+        $contract->setId();
+
+        $this->contract = $contract;
+        $this->initialized = true;
+        return $this;
+    }
+
+    public function fill(array $attr): static
+    {
+        if (!$this->initialized) {
+            throw new LogicException("初期化ミス");
+        }
+
+        $this->contract->fill($attr);
+        return $this;
+    }
+
+    public function id(): string
+    {
+        if (!$this->initialized) {
+            throw new LogicException("初期化ミス");
+        }
+        return $this->contract->id;
+    }
+
+
+    // ----------------PROTECTED----------
+    protected function save(): static
+    {
+        $this->contract->save();
+        return $this;
+    }
+}
diff --git a/app/Logic/Contract/CreateManager.php b/app/Logic/Contract/CreateManager.php
new file mode 100644
index 0000000..06673ca
--- /dev/null
+++ b/app/Logic/Contract/CreateManager.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Logic\Contract;
+
+class CreateManager extends ContractManager
+{
+    public function create(): array
+    {
+        $messages = [];
+        $this->save();
+
+        return $messages;
+    }
+}