A three-component digital seismic survey wave detector is provided, which mainly adopts a three MEMS acceleration sensors arranged in three vertical directions of X-axis, Y-axis and Z-axis, with the signal output connected with three channels of a 24-bit A/D converter, then outputs the digitalized seismic signal through a SCM chip with a CAN bus. The detector has good low frequency response performance, the response curve between 0 and 500HZ is almost flat; high dynamic range, up to 100dB; high vector fidelity, the inter-axis crosstalk is only 1 per cent; moreover, the static G of the utility model can be also detected through the analysis of each sensor to determine the buried perpendicularity and specified as directional cosine, the cosine data is stored together with the seismic data, the real vertical vector value is restored at the data processing center, so the detector is also favorable for improving the field construction efficiency by burying the wave detector. The utility model is the best for a digitalizing the seismic survey system to use as a sensor for receiving the seismic wave.