The invention relates to a high-resolution gyro torque current conversion circuit. A torque current integral circuit generates integral voltage according to gyro torque current, and outputs the integral voltage to an analog-to-digital conversion circuit; after generating first data input and saturation overflow signal input, the analog-to-digital conversion circuit outputs the first data input and the saturation overflow signal input to an FPGA control circuit; after generating second data input, and a clock control signal and a DA control signal of a digital-to-analog conversion circuit, the FPGA control circuit outputs the second data input, and the clock control signal and the DA control signal of the digital-to-analog conversion circuit to the digital-to-analog conversion circuit; a clock control signal of the analog-to-digital conversion circuit is generated and sent to the analog-to-digital conversion circuit; and the digital-to-analog conversion circuit generates current output, and sends the current output to the torque current integral circuit. The circuit disclosed by the invention is realized by converting an analog switch current feedback circuit composed of the traditional precision voltage source and switch into the digital-to-analog conversion circuit. Compared with the prior art, the circuit disclosed by the invention is not limited by the switching frequency; the maximum output frequency value is increased; and thus, the circuit disclosed by the invention has good use value.