Abstract: A belt clip for detachably fixing a cellular phone is disclosed, which comprises a body which has an accommodating part provided in the interior of the same and having an opened upper side, and a guide groove provided at a front side of the same for guiding accommodating into the accommodating part; and at least one stopper which is integrally formed at an inner side of the body and has a certain elastic force for preventing an escape of the accommodated engaging protrusion. It is possible to easily and reliably engage and disengage the cellular phone or the cellular phone casing to/from the belt clip, and the construction is simple. Since springs are not used in the present invention as compared to the conventional art, the manufacturing cost is not high, and a reliable and cheap belt clip for cellular phone can be manufactured.