The invention discloses a temperature control microwave ablating needle used for a microwave thermal ablating remedy of oncosis and pathologic change organization, the operation of which is convenient and safe. The invention comprises an ablating needle head, an ablating needle tube and a handle, wherein, a rhenium insulator is arranged between the ablating needle head and one end of the ablating needle tube, the other end is connected with the head of the handle, an end seal is arranged at the other end, a fixed mount and a jack used to be externally connected are arranged at the tail part of the handle, a coaxial cable connecting joint and a connecting terminal are arranged on the fixed mount, a microwave coaxial cable and a stainless steel capillary tube are arranged in the ablating needle tube, the microwave coaxial cable passes through the end seal, and the microwave coaxial cable is also connected with the coaxial cable connecting joint, a temperature sensor is arranged on the end seal, the connecting terminal used to be connected with the temperature sensor is arranged on the fixed mount, and the water outlet is communicated with the ablating needle tube. The usage is convenient, safe and reliable, the operating process is simplified, and the possibility of the operating time and the infection during the operation process is reduced.