An artificial fishing lure mimicking a real fish motion which consists in undulation of the fish body and transmission the undulation energy to flapping of the fish caudal fin. The lure comprises a body portion (2) constituting a joined to a head portion (1) flag and a caudal fin (3) constituting an attached to the flag propulsion blade. During towing a weight (4) and relative positions of the centers of gravity and buoyancy hold the lure in upright position, the flag flutters and therefore produces a sinusoidal bending wave which propagates along the relatively heavy body portion (2) inducing powerful flapping of the relatively light and stiff caudal fin (3). A cord (9) maximizes frequency and speed of the wave, a stiffening means (8) maximizes speed of the wave along a caudal peduncle (7) and assures that the energy of the wave is effectively transmitted to flapping of the caudal fin (3).