The movable ultra stable optical cavity can reduce the influence of environmental vibration on laser stability,and suitable for transportation conditions with high vibration intensity.This paper demonstrates an optical resonator made of ultra low expansion coefficient glass,and the frequency stability of the laser locking to the movable ultra stable cavity is tested.The mechanical design of the struts fixed inside the metal heat shielding provides good stability and mobility.In this paper,the laser linewidth locking to the super stable cavity is measured using short delay heterodyne interferometry and its stability is tested with the help of a vibration platform.It is found that the laser linewidth is lineally dependent on the vibration frequency and gradually increases to a saturated valued with the increase of vibration acceleration.The laser line width can be restored to the value in the absence of vibration when the vibration is removed,confirming the high stability of the super stable cavity.