The invention discloses a buffering cushion block structure used for an automobile. The buffering cushion block structure comprises a cushion block body. A sheet metal part matched with the cushion block body is arranged on an automobile body. The cushion block body is composed of a buffering pillar and a buffering seat, wherein the buffering pillar is arranged at the top end of the buffering seat, and the buffering pillar is of a hollow structure. A buffering cavity is formed in the buffering pillar, multiple screw-shaped screw buffering main parts are connected between the buffering cavity and the buffering seat, and screw buffering auxiliary parts are sleeved with the screw buffering main parts. Multiple three-direction strengthening corners and strengthening structures are connected between the outer wall of the buffering pillar and the buffering seat, and the three-direction strengthening corners and the strengthening structures are arranged in a staggered manner. By means of thebuffering cushion block structure used for the automobile, the screw buffering main parts and the screw buffering auxiliary parts are arranged in the buffering pillar, a double buffering effect is achieved on the buffering pillar, the service life of the cushion block body is prolonged, due to the three-direction strengthening corners and the strengthening structures connected between the buffering pillar and the buffering seat, stability of the buffering pillar is effectively improved, and the buffering performance of the cushion block body is further improved.