Child safety seat

The child safety seat comprises a seat assembly and an angle adjusting assembly, the seat assembly comprises a base, a seat body and a gradienter, the seat body is slidably connected with the base along an arc-shaped track, the base is provided with a plurality of positioning holes arranged at intervals in the extending direction of the arc-shaped track, the gradienter is fixedly connected with the seat body, and the angle adjusting assembly is fixedly connected with the gradienter. The levelness detector is used for detecting levelness of the seat body; the angle adjusting assembly comprises an adjusting part, a linkage part and a positioning part, the adjusting part is slidably connected with the seat body, the linkage part is rotatably connected with the seat body and the adjusting part, the positioning part is slidably connected with the bottom seat body, one end of the positioning part is rotatably connected with the linkage part, and the other end of the positioning part is selectively inserted into one