The utility model aims to provide a device which can be worn on an arm simply and conveniently and facilitates the taking and placing of a camera, in particular to a digital camera arm belt. The arm belt consists of an arm belt ring, an elastic belt ring and a camera button. The elastic belt ring is fixed on the arm belt ring. The camera button is fixed on the arm belt ring. The utility model can be manufactured conveniently and provides a convenient, beautiful and practical camera placement device for people to take photos when in travel.