To provide an antenna with a holder for a portable telephone set with which the portable telephone set can be held by integrally constituting an antenna and a holder for the portable telephone set.

This antenna is mainly composed of a holding part 2 for holding a portable telephone set 1, the main body 3 for supporting the holding part, the antenna element part, the antenna radial part, the cable 6 and the fixing means for fixing the main body 3 at any desired position. Namely, the conventional antenna and a holder for a portable telephone set are integrally constituting. Therefore, the cable 6 with a connector is bridged between them and there is no problem such as disturbing driving such as a steering wheel operation at the time of automobile driving. Further, since the holding part 2 for holding the portable telephone set 1 can be made to have a function as the antenna element part, the decrease in the number of parts and the reduction of size can be performed.