Novel portable vehicle-mounted combined boat and usage method thereof

The invention discloses a novel portable vehicle-mounted combined boat and a usage method thereof, and relates to the technical field of vehicle-mounted combined boats. The novel portable vehicle-mounted combined boat comprises a boat body, and polyurethane foaming shells are arranged on the outer walls of the two sides of the boat body. According to the novel portable vehicle-mounted combined boat and the usage method thereof, the balance fins can be selectively placed on the water surface, the storm resistance stability of the boat body can be effectively improved, then the using safety of the combined boat is improved, the possibility that the boat falls into water accidentally is reduced, the balance fins can be conveniently stored in the driving process, and the service life of the boat is prolonged. Normal swimming of the combined boat is not affected, operation is easy, popularization and use are convenient, the life buoy can be inflated conveniently, compared with life buoys with intact gas, the probl