In order to realize the high accuracy seismic exploration in high electro-magnetic fields and to improve oil producibility and oil recovery efficiency,a three-component photoelastic waveguide accelerometer was developed. Based on the photoelastic effect,a Mach-Zehnder integrated optical interferometer was presented to measure the three-orthogonal components of acceleration and a combined three-component simple harmonic vibrator was designed to reduce the cross-talk among the acceleration components. According to the phase variation of a LiNbO3 waveguide under the action of the applied acceleration,the cross-axis sensitivity and transverse sensitivity ratio(TSR) were analysed. Experimental results indicate that the natural frequency of the sensor is 3 500 Hz; response bond is from 0 Hz to 3 000 Hz,and the transverse sensitivity ratio is 0.11%,which can satisfy the sensor requirements of high accuracy seismic exploration.