Based on the characteristics of the Triaxial Accelerometer test,a new Triaxial Piezoelectric Accelerometer has been designed.The accelerometer based on piezoelectric effect,used a strict rotary inertial mass and highly symmetric piezoelectric ceramic pieces.The experimental result shows that the acceleromete has stable performance stabilize and the sensitivities of the three axes are up to 3.0×10-3V·m/s2.The accelerometer has the merits of small size,high accuracy of measurement,low price and flexibility.We can see the accelerometer will promising applications.