PURPOSE: To efficiency generate beautiful soap bubbles excellent in covergence at a low cost by supporting a long part in which a rotary body is formed in ring form, in conical shape by the axis center and revolving the long part by a motor and allowing an air stream sending part to discharge the long part through the contact with the soap bubble liquid.

CONSTITUTION: A motor M is connected with a rotary body (a) through a shaft 1, and the rotary body (a) has a conical shape, and the weight axis a-1 is directly connected with the shaft of the motor. The long part of the rotary body contacts the surface of the soap bubble liquid in an interval of X. While, the air stream supplied from an air stream generating source A which rises from the right side is blown from the inside toward that width length X of the long part of the rotary body through B-1 from B-2. The angle of the piping of B-1 sometimes forms vertical or 90°±α with respect to the surface of the soap bubble liquid. Accordingly, the piping of β can be varied between β-1 and β-2. Each aperture at the top edges of the long part X and the discharge port β-1 of the air stream is set nearly equal.