The invention relates to a cable terminal for totally enclosed switch equipment, an assembly method and a temperature measurement system, and belongs to the related technical field of power equipment. The cable terminal mainly comprises a terminal body, wherein a bulge part is arranged at one side of the terminal body and is connected with a side cover through a fastener; the bulge part and the side cover form an accommodating cavity for accommodating a wireless passive sensor; a positioning mechanism is arranged on the side cover and positions the wireless passive sensor in the accommodating cavity; and the wireless passive sensor monitors a temperature signal of the cable terminal and transmits the temperature signal to the outside. The temperature change condition of the cable terminal in the totally enclosed switch equipment can be efficiently monitored, so that whether the cable terminal has a potential risk or not is judged; real-time treatment and maintenance are carried out before an accident; and the wireless passive sensor can be conveniently dissembled for repeated utilization.