Novel automobile seat sliding rail capable of preventing balls from falling off

The utility model relates to a novel car seat slide rail capable of preventing balls from falling, in particular to the technical field of car seat slide rails, which comprises an upper slide rail and a lower slide rail, the section of the lower slide rail is U-shaped, the section of the upper slide rail is T-shaped, two ends of the upper slide rail are integrally provided with abutting pieces with O-shaped sections along two ends of the T shape, and the abutting pieces are connected with the lower slide rail. A first groove and a second groove are formed in the top of the abutting part, a third groove is formed in the bottom end of the abutting part, a first ball and a second ball abut against the inner side face of the lower sliding rail in the first groove and the second groove respectively, and a third ball abuts against the position between the interior of the third groove and the lower sliding rail. The ball bearing has the technical effect of preventing the balls from falling off. 本实用新型涉及一种防止滚珠掉落新型汽车座椅