According to the base capable of sliding laterally and the child carrier, the base body and the rotary disc are included, and the rotary deviation mechanism is arranged between the rotary disc and the base body, so that the rotary disc can be switched from the first use state to the second use state under the condition of one-time operation; when the child carrier body is connected to the base body through the rotary disc for use, a
user needs to hold a child on the child carrier body or separate and disassemble the child carrier body on a vehicle rear seat, the user can switch the rotary disc to the second use state through one-time operation, and the child carrier body can be used in the second use state. By means of the structural design, a user can conveniently hold a child or disassemble the child carrier body, the situation that the body needs to stretch into the rear seat is avoided, the child carrier has the
advantage of being convenient and fast to operate, and by means of the structural design scheme, the base is simple and reasonable in overall structure and convenient to use. And the thickness is small, the weight is light, and people can conveniently carry the device when going out.