A three component all fiberoptic acceleration seismometer based on compliant cylindrs is introduced.The structure design of the three component seismometer are described.The seismometer is composed of a seismic mass,six cylinders and three sets of Michelson interferometer light path.Its any axial acceleration sensitivity can be measured up to 10 3 rad/g(where g is gravity acceleration).It can detect 3 axial accelerations a x,a y,a z simultaneously,and the acceleration a can be obtained by vectorial resultant.Thereby,real time and high precision detection for an acceleration can be realized.