Temperature sensor

The temperature sensor comprises a body and a shell, the body comprises an insulator, an insertion piece terminal and a thermistor, the insertion piece terminal and the thermistor are located in the insulator and connected, the body is provided with a first end and a second end which are opposite to each other, the first end serves as a signal output interface to be connected with a whole vehicle wire harness, the second end is in a cylindrical shape, and the shell is arranged in the shell. The body is provided with a first end and a second end, the head part of the shell is provided with a retaining structure, the retaining structure is in interference fit with the second end, so that the shell can be positively embedded into the second end of the body in a crimping manner, and when the retaining structure is matched with the second end, the thermistor is embedded into the shell through the second end. According to the temperature sensor provided by the invention, the shell and the body are assembled togethe