The utility model provides a knock massage stick with cold and hot functions, which comprises a shell, a knock motor and a knock swing arm, the shell is provided with a handle part and a mounting cavity, the knock motor and the knock swing arm are mounted in the mounting cavity, and a motor shaft of the knock motor is in transmission connection with one end of the knock swing arm through a deflection component; a massage assembly is arranged at the other end of the knocking swing arm; the device further comprises a cold and hot chip, a control circuit board and a heat dissipation assembly. Theheat dissipation assembly and the control circuit board are both installed in the installation cavity, one end face of the cold and hot chip is in heat conduction connection with the massage assembly, and the cold and hot chip, the heat dissipation assembly and the knocking motor are all electrically connected with the control circuit board. The heat dissipation assembly is in transmission connection with a motor shaft of the knocking motor, the motor shaft of the knocking motor drives the heat dissipation assembly to work, and hot air in the installation cavity is exhausted out of the shell.The utility model provides a knocking massage stick with cold and hot functions. The number of elements in the knocking massage stick and the structural complexity are reduced.