The invention discloses a process method for removing pit defects from a surface of a steel strip. The method comprises the following steps of controlling the slab tapping temperature of the steep strip within the range of 1130-1180 DEG C; controlling a rough mill to adopt a three and five-pass rolling mode to roughly roll a slab, and performing full-pass descaling on the slab by the rough rolling procedure; performing finish rolling on the roughly rolled intermediate slab, and controlling the finish rolling inlet temperature of the intermediate slab within the range of 940-980 DEG C; controlling the opening amount of cooling water in a first machine frame between a first finish mill and a second finish mill within the range of 25%-30%; controlling the opening amount of cooling water in a second machine frame between the second finish mill and a third finish mill within the range of 18%-20%; controlling the opening amount of cooling water in a third machine frame between the third finish mill and a fourth finish mill within the range of 18%-20%; controlling the opening amount of cooling water in a fourth machine frame between the fourth finish mill and a fifth finish mill within the range of 45%-50%; controlling the rolling speed of a seventh finish mill within the range of 4.5%-5.5m/s. The process method has the advantage that by optimizing the process of rolling production lines, the occurrence of the pit defects at the surface of the steel strip is avoided at the source.