Auxiliary boat folding and unfolding device and ship

The invention relates to the technical field of ship construction, in particular to an auxiliary boat folding and unfolding device and a ship. The auxiliary boat folding and unfolding device comprises a rack, an extending driver and a folding and unfolding mechanism, the rack comprises a first frame body, a second frame body and a support, the first end of the first frame body and the first end of the second frame body are arranged in a spaced mode and rotationally arranged on a deck of a ship, and the second end of the first frame body and the second end of the second frame body are fixedly connected through the support; the first frame body and the second frame body are each of a semi-surrounding structure, so that the first frame body and the second frame body define a containing space used for containing the auxiliary boat, and the occupied space of the whole set of equipment is reduced. The extension driver is used for driving the rack to rotate, so that the auxiliary boat is moved to the outboard, then