TOP COVER AND BASE FOR CHILD SAFETY SEAT AND CHILD SAFETY SEAT

This disclosure provides a top cover for a base, a base for a child safety seat and a child safety seat, wherein the top cover comprises a top cover body, an upper surface of the top cover body is provided with a protrusion located at a front end of the top cover body, and the upper surface of the top cover body is further provided with a seat area located on a periphery of the protrusion for a child to sit. In the top cover this disclosure, a protrusion is provided on the upper surface of top cover body of the top cover, a protrusion can block a forward movement of a child sitting in the seat area when an accidental impact occurs, reducing a pressure on the child's abdomen due to the accidental impact, and making the child sitting on the top cover safer.