The utility model discloses a temperature balance controller, which comprises a single chip microcomputer, a temperature measuring unit, a temperature control output unit and a press key type input unit. The temperature measuring unit, the temperature control output unit and the press key type input unit are all connected with the single chip microcomputer. The temperature balance controller is characterized in that the temperature value input through the press key input unit serves as a temperature set value, the onsite temperature value measured by the temperature measuring unit in real time serves as a temperature feedback value, proportional integral derivative (PID) control is introduced, PID parameter is obtained according to temperature error signals between the temperature set value and the temperature feedback value, the single chip microcomputer conducts corresponding control signals according to the PID parameter, and the temperature control output unit is utilized to control onsite temperature. The temperature balance controller is capable of measuring onsite temperature in real time and adjusting onsite temperature according to temperature measurement condition and manual setting condition, wherein manual setting can be finished by operating press keys. The temperature balance controller is capable of achieving optimum control of a temperature controller.