Circuit capable of automatically eliminating orthogonal error of gyroscopes

The invention relates to a circuit capable of automatically eliminating the orthogonal error of gyroscopes. The circuit comprises: a capacitance-voltage conversion circuit (2), wherein the input terminal of the capacitance-voltage conversion circuit (2) is connected to the signal detection terminal of an MEMS gyroscope device (1); a signal amplification circuit (3), wherein the input terminal of the signal amplification circuit (3) is connected to the output terminal of the capacitance-voltage conversion circuit (2); an automatic gain control circuit (4), wherein one path of the input terminal of the automatic gain control circuit (4) is the stable-amplitude and stable-frequency signal output by a phase locked loop circuit (5), and the other path of the input terminal of the automatic gain control circuit (4) is the output from the signal amplification circuit (3); and a phase shift circuit (8), wherein the input terminal of the phase shift circuit (8) is from the automatic gain control circuit (4), and the p