Hello, dear hotel, the surveillance video can be saved for 1-3 months. The state requires hotel surveillance videos to be kept for more than one month, and large hotel surveillance videos for more than three months. In case of emergency, it is required to copy the video materials and keep them for a long time. Theoretically, the hotel monitoring system is closed to the outside world. If you really need to retrieve the hotel surveillance video, then you need the relevant public security departments to issue a certificate and retrieve it together. In other words, if you want to retrieve the hotel surveillance video, you need to call the police first, and then accompany the police to retrieve the surveillance video with the hotel.