The utility model discloses a weak magnetism measured module of triaxial high accuracy, including integrated magnetism measured module circuit in no half seal chamber on the magnetism metal, magnetism measured module circuit includes integrated vibration source on the circuit board, the voltage-multiplying network, and the weak magnetism measured module of bias circuit and three single weight, magnetism measured module meets with the source parallel connection that vibrates a little less than three single weight, and the weak magnetism measured module of single weight is including accelerateing the network, network input termination vibration source follower end with higher speed, the network output termination amplifies the network with higher speed, connects the drive network on amplifying the network, and constant current source and synchronous demodulation network have connect the low pass network on the synchronous demodulation network, connect the integral network on the low pass network, a feedback network termination integral network, a termination amplifies the network, draws after connecing resistance on the integral network, and the acceleration network that quickens network and both sides in the middle of the weak magnetism measured module of three single weight meets make sensitivity and resolution ratio improve, stability and reliability reinforcing, the consumption reduces, bulk reduction and temperature resistance behavior reinforcing.