The invention discloses a temperature compensation active bias circuit, which comprises a switching transistor, an active bias transistor, a voltage regulation resistor R2 and a gate current limitingresistor R5, one end of the switch transistor is connected with one end of the voltage regulation resistor R2, and the other end of the voltage regulation resistor R2 is connected with the active biastransistor and one end of the gate current-limiting resistor R5; the invention provides the temperature compensation active bias circuit capable of reducing the process sensitivity so as to solve theproblem of performance stability of a low-noise amplifier chip in a complex working environment and improving the yield of the low-noise amplifier chip.