High-accuracy current signal regulating circuit

The invention provides a high-accuracy current signal regulating circuit and relates to a current signal regulating circuit. The problem that existing regulating circuits with a regulating range from microampere current signals to 0-10V voltage signals cannot meet the demands for accuracy conversion and stability is solved. A 3-end wiring port CON3 is connected with a microampere current signal sent by a sensor and converts the signal into voltage U1 on a resistor RG 3. A first operational amplifier UGIA, a second operational amplifier UGIB and a fourth operational amplifier UGID form a differential amplification circuit, and the differential amplification circuit amplifies the voltage U1 and reversely outputs 0-10V voltage through a third operational amplifier UGIC. The high-accuracy current signal regulating circuit is suitable for current signal conversion.