The invention discloses a phase self-compensation infrared detector readout circuit. The circuit is a phase self-compensation CTIA (capacitor feedback transimpedance amplifier) readout circuit; a CTIA output end adopts a phase self-compensation capacitor, so that the circuit can be subjected to quick phase self-compensation under low temperature; an input integral circuit adopts a capacitor feedback transimpedance amplifier in a primary cascode structure, and an integrating capacitor in the integral circuit is a multistage amplification structure formed by three capacitors connected in parallel, so that readout of detector signals in different response rates can be met; and a CDS output end adopts a low-power-consumption N tube follower structure controlled by a switch, and thus the total power consumption of the circuit is reduced greatly. The advantages are that the circuit is simple in structure, can realize phase self-compensation under low temperature, is low in power consumption, is capable of realizing magnification time multi-stage tunableness and can work normally from normal temperature to liquid nitrogen low temperature.