Child seat

A child seat comprising,

• a child seat main portion for holding a child having an engaging member,
• a base on which said child seat main portion is detachably mounted, said base having an upper portion, a connecting portion at one side of the base adapted to be connected to a bar of a vehicle, and a fixing member formed at the upper portion to be engageable with the engaging member of the child seat main portion,
• an engagement releasing member installed in one of the base and the child seat main portion for releasing an engagement between the fixing member and the engaging member, and
• a fitting member formed at a rear area of the base for fitting the base tightly onto a seat of the vehicle, said fitting member being attached to the base to rotate in front and rear directions of the base and having an abutting member to abut against a seat back and a spring for preventing the abutting member from being rotated forward.