Disclosed are an aircraft (1), a wing assembly, and an aerocar. The aircraft (1) comprises a fuselage (10), a wing assembly (20), a tilting connector (30), and a rotor assembly (50). The wing assembly (20) comprises a fixed portion (21) and a folding portion (23), the fixed portion (21) is arranged on the fuselage (10), and the folding portion (23) is movably connected to the fixed portion (21) and is foldable relative to the fixed portion (21); the tilting connector (30) is rotatably arranged on the wing assembly (20); and the rotor assembly (50) is in transmission connection with the tilting connector (30), so that a spatial angle is changed under the driving of the tilting connector (30). The folding portion of the wing assembly of the aircraft is foldable relative to the fixed portion, so that the wing assembly can be folded, and thus the flexibility of the aircraft in a parking and transition process is improved; and in addition, the spatial angle of the rotor assembly can be changed under the driving of the tilting connector, so that the aircraft also has the functions of vertical take-off and landing and level flight, and travel requirements of various scenarios can be fully met.