Abstract: A multifunctional all-terrain vehicle having a body for accommodating people and cargo, an engine, and a transmission having axles and wheels. Disposed on the axles are brake discs gripped within brake pads which are actuated by brake cylinders disposed in a carriage and forming a brake system, and can be used for traveling over land, water, swamps, snow. According to the invention, a single frame is configured as a three-dimensional structure, and waterproofing is additionally provided with a vertically adjustable seat.