The invention is a safe seismic prospecting electric detonator, and only one metal wire is used in the firing part, wherein, a tube is arranged in a bayonet of a hydraulic clip machine, a rubber stopper with a copper bridge wire is inserted into the tube, the chip machine is started after the positions of a subassembly and a pyrophoric part are adjusted, and the bayonet is contracted to cause the subassembly and the pyrophoric part to closely fit together without using an ignescent again. The invention can resist any damage caused by various DC, AC stray current and static, thunder and radio frequency current. The seismic prospecting electric detonator provided by the invention can be used together with special detonating device, which improves the initiation energy greatly and gets rid of the damage of detonator accidental explosion caused by stray current, static, thunder, radio frequency current and the like, and is especially applicable to severely impaired occasions with stray current, static and the like.