The invention relates to the field of child safety seats, in particular to an automotive child safety seat. By adding spring dampers to parts, including a base, a back and a headrest, of a child safety seat, buffering and energy absorption can be well achieved in collision, and then injuries of collision to children are reduced. Meanwhile, a FIX unlocking component, a pedal component and a safety belt component of the seat are optimized, so that practicality is improved; besides, an anti-splashing component is added to prevent splash generated in collision from injuring children.