Aiming at the motion drift problem of autonomous underwater vehicle(AUV)in the presence of ocean current,this paper presents a geomagnetic bio-inspired navigation method in view of the influence of underwater unknown constant currents.As vehicle real operating environment seem to be uncertain,the ocean current will have an impact on the direction of AUV.In order to better overcome the current interference,search strategy should have the ability to compensate the heading error of AUV.