The invention discloses an adaptive temperature protection circuit. The adaptive temperature protection circuit comprises a temperature regulation unit, a current-limiting protection unit and a DC/DCconversion unit; the temperature regulation unit comprises a current source Is1, a current source Is2 and a diode D1; the input end of the current source Is1 and the output end of the current source Is2 are electrically connected with the current-limiting protection unit, and the output end of the current source Is1 is electrically connected with the positive electrode of the diode D1 and the input end of the current source Is2; the input end of the current source Is2 and the negative electrode of the diode D1 are grounded; the current-limiting protection unit is electrically connected with the DC/DC conversion unit. The current of the current-limiting protection circuit is set through the temperature regulation unit; when the temperature is higher than a set value, the temperature regulation unit is started to reduce the set value of the current-limiting protection unit so as to reduce output current, so that the temperature of the integrated circuit is adaptively stabilized within aset temperature range.