CHILD SAFETY SEAT

A child safety seat, comprising a seat body, a connecting member and a sealing mechanism; the seat body is provided with a mounting opening for insertion of a fitting, the connecting member is provided in the mounting opening and is fixedly connected to the seat body; the sealing mechanism comprises a sealing member, the sealing member is slidably provided in the mounting opening and is used for sealing the mounting opening, the sealing member is provided with an accommodating groove which has an opening facing outwards and is used for accommodating the connecting member, and the sealing member is pushed by means of the fitting to enable the connecting member to be detached from the accommodating groove, such that the fitting can be connected to the connecting member.