Abstract: A mounting device for mobile telephones, comprising a belt assembly, a swivel assembly and a telephone holder assembly. The belt assembly, which is to be secured to the user's shoulder, consists of an upper jacket, a lower apron and a pair of Velcro hook and loop fastener pieces. The swivel assembly, which is mounted on the upper jacket by way of fastening screws, consists of a mounting piece and an erecting rod. The telephone holder assembly, which is designed for holding a telephone, consists of a pair of side plates equipped with a set of bolts, spring pieces and an hexagonal nut. With this mounting device for mobile telephones, users can talk on the telephone without having to hold on to it.