The invention discloses a quick connection mechanism. The quick connection mechanism comprises a connector and a locking component, wherein the connector comprises a connecting plate and a locking head which are mutually connected; the locking head is cylindrical, and an annular groove is formed in the side wall of the locking head; the locking component comprises an outer sleeve, positioning balls, a locking ring, a limiting ring and a fixed block; the locking ring is connected with a locking handle arranged outside the outer sleeve; the locking handle can drive the locking ring to move up and down in the outer sleeve; a semi-sphere is arranged at the outer side edge of the top of the limiting ring; a circle of the positioning balls are arranged in a space formed by the semi-sphere, the upper edge of the locking ring and the inner wall of the upper opening of the outer sleeve; and the connecting plate is connected with a connecting piece, and the fixed block is connected with a connected piece. The quick connection mechanism is quick and convenient in connection and detachment without tools, high in mounting efficiency, reliable in connection and strong in bearing capability; when the quick connection mechanism is used individually, the connecting piece can freely rotate relative to the connected piece; and the quick connection mechanisms can be grouped for use and are suitable for various structures required to be connected.