Detachable warning backpack

The utility model discloses a detachable warning backpack. The detachable warning backpack comprises a backpack body and a hanging decoration, wherein an illuminating device and\or a sound producing device are arranged on the front face of the backpack body, the illuminating device and the sound producing device are connected with a power supply through switches respectively, the power supply and the sound producing device are arranged inside the hanging decoration, and the illuminating device can be fixed on the backpack body through a detachable device. According to the detachable warning backpack, the detachable illuminating device and\or the detachable sound producing device are arranged on the backpack body through a fixing groove, attention is attracted from others through sound and light warning, occurrence of traffic accidents is avoided, and meanwhile the detachable warning backpack is convenient to dismantle through a snap fastener below the fixing groove on the premise of not damaging the backpack