The invention discloses a multi-functional lap belt for help calling, life saving and life supporting, comprising a belt. The multi-functional lap belt is characterized by comprising a separable hand-hold life preserver area, a necessary life-saving articles storage area, an independently used electrical life-saving area, a multi-functional belt head and a concealed safety belt, wherein the hand-hold life preserver area, the necessary life-saving articles storage area and the multi-functional belt head are in separable integral structure, and the independently used electrical life-saving area is arranged on a belt button. When urgent situations, emergent events and the like happen or in extreme environments, a user with the multi-functional lap belt can timely deal with emergencies, call for help, support life, save life, and flee for life, thus enhancing the action capacity against accident disasters, prolonging survival time and improving saved opportunities. The invention can be applied to various fields, such as traffic accidents, fires, earthquakes, terrorist attacks, wilderness survivals, outdoor travelling, salvation for patient with acute diseases, nursing for the aged and children, individual equipment of military and police and the like, thus saving life to the greatest extent. The invention can not only satisfy functional demands, but also be designed in various fashionable appearances and styles to facilitate daily use.