An improved baby carrier device having an integral swinging mechanism which is capable of providing a pendulum-like rocking action thereto is herein disclosed. In addition to other known uses such as a containment mechanism for infants or as a receptacle for mounting within a baby carriage, or car seat, the present invention enhances the utility of a conventional baby carrier system via the incorporation of a integral baby swing, thereby abating the need for other extraneous mechanisms or other related swing drive devices. The carrier device has a pair of leg assemblies which are incorporated into the handle assembly thereof and are selectively adjustable by a user from an extended position wherein said carrier shell is suspended above a support surface in a stable manner, to a retracted position wherein the leg assemblies are confined within the housing of the handle assembly. Self-propelled actuation means are also described which drivingly couples the rotational force of a motor drive means to the reciprocal pendulum-like action of the swing assembly.