diff --git a/models/DownloadLogs.php b/models/DownloadLogs.php
new file mode 100644
index 0000000..c86d903
--- /dev/null
+++ b/models/DownloadLogs.php
@@ -0,0 +1,99 @@
+<?php
+
+namespace app\models;
+
+use yii\db\ActiveQuery;
+use yii\db\ActiveRecord;
+
+/**
+ * This is the model class for table "download_logs".
+ *
+ * @property int $id 日志id
+ * @property int|null $user_id 用户id,未登录时NULL
+ * @property int|null $share_id 分享id
+ * @property string|null $access_time 访问时间
+ * @property string|null $ip_address ip地址
+ * @property string|null $user_agent UA
+ *
+ * @property Share $share
+ * @property User $user
+ */
+class DownloadLogs extends ActiveRecord
+{
+    /**
+     * {@inheritdoc}
+     */
+    public static function tableName(): string
+    {
+        return 'download_logs';
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function rules(): array
+    {
+        return [
+            [['user_id', 'share_id'], 'integer'],
+            [['access_time'], 'safe'],
+            [['ip_address'], 'string', 'max' => 45],
+            [['user_agent'], 'string', 'max' => 255],
+            [['user_id'], 'exist', 'skipOnError' => true, 'targetClass' => User::class, 'targetAttribute' => ['user_id' => 'id']],
+            [['share_id'], 'exist', 'skipOnError' => true, 'targetClass' => Share::class, 'targetAttribute' => ['share_id' => 'share_id']],
+        ];
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function attributeLabels(): array
+    {
+        return [
+            'id' => '日志id',
+            'user_id' => '用户id,未登录时NULL',
+            'share_id' => '分享id',
+            'access_time' => '访问时间',
+            'ip_address' => 'ip地址',
+            'user_agent' => 'UA',
+        ];
+    }
+
+    /**
+     * Gets query for [[Share]].
+     *
+     * @return ActiveQuery
+     */
+    public function getShare(): ActiveQuery
+    {
+        return $this->hasOne(Share::class, ['share_id' => 'share_id']);
+    }
+
+    /**
+     * Gets query for [[User]].
+     *
+     * @return ActiveQuery
+     */
+    public function getUser(): ActiveQuery
+    {
+        return $this->hasOne(User::class, ['id' => 'user_id']);
+    }
+
+    /**
+     * @param int|null $userId
+     * @param int $share_id
+     * @param string $ipAddress
+     * @param string $userAgent
+     * @return void
+     */
+    public static function addLog(int|null $userId, int $share_id, string $ipAddress, string $userAgent): void
+    {
+        $log = new self();
+        $log->user_id = $userId??null;
+        $log->share_id = $share_id;
+        $log->ip_address = $ipAddress;
+        $log->access_time = date('Y-m-d H:i:s'); // 使用当前时间作为登录时间
+        $log->user_agent = strlen($userAgent) > 250 ? substr($userAgent, 0, 250) : $userAgent;
+
+        $log->save();
+    }
+}