Seat, vehicle and carrier

The embodiment of the utility model provides a seat, a vehicle and a carrier, the seat comprises a cushion framework, a backrest framework, a functional device and a wire harness, the backrest framework is rotatably connected with the cushion framework, the functional device is arranged on the backrest framework, and the backrest framework comprises a front surface for leaning and a side surface adjacent to the front surface; one end of the wire harness is electrically connected with the functional device, the other end of the wire harness is electrically connected with a controller for controlling the functional device, and the middle part of the wire harness is positioned on the side surface of the backrest framework. The seat can be folded forwards to enlarge the activity space of the back row of seats and enlarge the front view field, and can also be laid flat backwards to form a bed to improve the comfort of the seat during rest. Therefore, the overall operability and comfort of the seat in the embodiment are improved.