The utility model relates to a belt buckle is accomodate to magnetism, the strap is detained, worn including lock belt buckle, strong magnet board, area eye. This device structure appearance is similar basically with general belt buckle, its characterized in that, and the front of the belt buckle strong magnet board of binding, the neat face periphery of strong magnet has protruding edge, and the widget is convenient for hold by concave surface of intermediate formation. The lock belt buckle is connected to the belt buckle rear end, and the back is equipped with the strap and detains with the area eye. The during operation, the operator will take belt buckle is accomodate to magnetism's waistband system to be located the underbelly centre at coat outside, belt buckle, and the little ironwares such as screw, screw of pulling down so temporarily or prepare the installation can adsorb on the belt buckle, and the time spent is taken at any time, very the convenience. The utility model provides an electric power secondary work operator and the finding problem of placing that other operators have a headache, high practical value has.