The utility model provides a temperature sampling subassembly, including PCB board and protection piece, be provided with thermistor in the one side of PCB board, protection piece covers on the PCB board is provided with thermistor's one side, encapsulates thermistor between PCB board and protection piece, and the one side that the PCB board did not set up thermistor exposes, and the one side that does not just set up thermistor is used for and the surface contact by the temperature measurement object, the PCB board is provided with the reinforcement structure that still is provided with protection thermistor in thermistor's the one side, the reinforcement structure is the annular structure, and thermistor is arranged in the hole of reinforcement structure. The utility model discloses a PCB is stiff and straight to be connect and is fully contacted by the temperature measurement object, and thermistor sets up on the PCB board, and heat transmission route is short, can quicker accurate collection by the temperature of temperature measurement object, and ben wendu sampling subassembly simple to operate promotes assembly efficiency.