Variable wing helicopter

The invention relates to a variable wing helicopter. Posture angles of a rotary wing and a body of an aircraft are synchronously changed by using a variable wing driver to generate a vertical upward lift force, so the aircraft can vertically take off and land. The variable wing helicopter has the advantages of simple structure, safety and reliability. The variable wing helicopter adopts the following work modes: using a positioning gear to express posture information of the aircraft; using an actuating gear to acquire the information; using an eccentric device to generate actuating quantity simultaneous with the posture of the aircraft; and using a linkage device to drive a wing shaft of the rotary wing and a wing plate to change the angles, and making the rotary wing generate the vertical upward lift force.