Infrared focal plane array and enabling control circuit of reading circuit of infrared focal plane array

The embodiment of the invention discloses an enabling control circuit of a reading circuit of an infrared focal plane array. The enabling control circuit comprises an and gate, an external control circuit, a simulation power-on and power consumption detection circuit, and a digital power-on detection circuit. The external control circuit, the simulation power-on and power consumption detection circuit and the digital power-on detection circuit are connected to three input ends of the and gate respectively, and the output end of the and gate outputs an enabling control signal. According to the enabling control circuit, the enabling control signal is jointly controlled through an external control signal, a digital power-on detection signal and a simulation power-on and power consumption detection signal, the simulation power-on and power consumption detection signal is added to an enabling control module, thus whether a simulation module is powered on or not can be detected, the situation of overhigh power consumption can be prevented on the whole, and power consumption is effectively controlled.