Robbing-proof theft-proof alarm handset cover

An anti-robbery and anti-theft mobile phone sleeve includes a phone sleeve and a hanging clamp on the sleeve, which is characterized in that a phone sleeve locking device and an alarm circuit are arranged on the hanging clamp. The phone sleeve locking device is equipped with a lock button and a press button switch to close the phone sleeve. The alarm circuit is equipped with an alarm circuit board, a battery, a micro horn and a power switch linked with the press button switch. The phone sleeve consists of a metal frame and a coat. The trip hook of the metal frame buckles with the lock button on the hanging clamp to lock the phone inside the sleeve. When the sleeve is opened, the press button on the hanging clamp is pressed to make the power switch closed. Then the alarm circuit is triggered and the alarm is warning to prevent theft. The metal frame of the phone sleeve and the coat is arranged to be releasable to prevent robbery.