Child car seat

The invention belongs to the technical field of child car seats, and particularly relates to a child car seat. Comprising a chassis, a movable disc connecting frame and a seat, the connecting frame is in sliding connection with the movable disc, and the connecting frame is used for being connected with a seat; a locking structure used for limiting the connecting frame to slide relative to the movable disc is further arranged between the chassis and the connecting frame, and a rotation locking mechanism used for limiting the movable disc to rotate relative to the chassis is arranged between the movable disc and the chassis. An unlocking mechanism for unlocking the rotary locking mechanism is arranged on the seat; after the locking mechanism is unlocked, and when the movable disc rotates to a certain angle relative to the chassis, the locking mechanism can be automatically unlocked. According to the scheme, the unlocking mechanism for unlocking the seat to rotate relative to the base is arranged on the seat, an