New type mobile phone protection shell

The utility model relates to a new type mobile phone protection shell. The new type mobile phone protection shell comprises a rear cover provided with a rear cover outer wall and a rear cover inner wall. The new type mobile phone protection shell further comprises an elastic protection shell sleeved onto the rear cover inner wall. The rear cover is provided with a sound amplification structure. According to the utility model, the above structure is adopted. According to the utility model, the rear cover made from PC and the elastic protection shell made from TPU are adopted, so the shock resistance and drop resistance protection function can be realized; and the rear cover is provided with the sound amplification structure, the sound generated by the mobile phone is further processed in the sound amplification structure, so advantages of louder sound, good tone quality and wide sound range can be realized.