To connect a pipe body to a body easily in a short period of time.

A pipe connecting structure for spherical body transfer includes: a body 1 having an internal passage 1a through which spherical bodies B pass and a cylindrically projected attaching cylinder part 1b; and a pipe body 2 attached to the attaching cylinder part 1b and having the pipeline 2a of the spherical bodies B. An annular projection 1c is formed along the outer peripheral surface of the attaching cylinder part 1b, the pipe body 2 is provided with a locking means 3 to be engaged freely movably in the radial direction of the attaching cylinder part 1b and immovably in the axial direction of the attaching cylinder part 1b along the annular projection 1c to be concentric with the pipe body 2, and the pipe body 2 is connected to the attaching cylinder part 1b of the body 1 to continue the internal passage 1a of the body 1 and the pipeline 2a of the pipe body 2.