Research and fabrication of micro-electro-mechanical system（ MEMS） vector hydrophone with magnetic bearing correction is introduced. The vector hydrophone is constructed with vibrators inside using capacitance theory MEMS technique

and the design adopts the way which close to signal processing circuit.It can reduce noise interference and suppress signal attenuation. Problem of low direction precision of single vector hydrophone is solved through magnetism bearing correction technique.The vector hydrophone completes calibration in national level metrology institute and test on magnetic azimuth error correction.The result shows the feasibility of method of vector hydrophone designed with magnetism direction compensation.The vector hydrophone can be used in underwater target detection and localization and navigation tasks.