To provide a grasping and connecting mechanism capable of reducing the size and cost even if it is equipped with a holding mechanism and a connecting mechanism, and of preventing any mutual interference of both mechanisms, and provide a moving device group having a moving device with the grasping and connecting mechanism and a moving device having a connected member.

The grasping and connecting mechanism comprises a grasping mechanism 20 capable of grasping and opening an external object and storing at the storage position except the grasping operation, a connecting mechanism 30 mounted on the holding mechanism and capable of connecting/disconnecting an external connected member 40, and one driving mechanism 50 which is mounted on the grasping mechanism, capable of performing the grasping, opening and storing operations of the grasping mechanism, and connecting/disconnecting the connecting mechanism. Thus, any driving mechanism exclusive for the grasping mechanism and any driving mechanism exclusive for the connecting mechanism need not be mounted separately, and since the connecting mechanism and the driving mechanism are intensively assembled in the grasping mechanism, a miniaturized grasping and connecting mechanism can be realized at low cost.