PROBLEM TO BE SOLVED: To provide a temperature characteristic evaluation device of an electronic component capable of contributing to the design of a circuit board and a temperature control unit used for the same by checking, even in a state where an electronic component or the like is mounted on a circuit board and operated, how much the temperature of the electronic component increases or whether the electronic characteristics are not adversely affected even if no mater how much the temperature is increased.SOLUTION: Band-shaped heating resistors 2 arranged at least in parallel in two lines and heating an insulation board 1 are formed on one side of an insulating board 1, and at least one pair of electrodes 3 which can flow electric current is connected in the longitudinal direction of the heating resistors 2 formed in the two lines, and at least one resistance 4 for temperature measurement is formed on the insulation board 1 between the heating resistors 2 of at least two lines, and is connected with at le
