Magnetic compression anastomosis ball

The invention provides a magnetic compression anastomosis ball, which can assuredly avoid anastomotic leakage caused by incomplete anastomosis and comprises a rotating shell I and a rotating shell II. The rotating shell I and the rotating shell II are attracted with each other magnetically. A plain thread of the rotating shell I is a smooth curve, two ends of the curve are spaced from an axis by certain distances, so that a large opening end and a small opening end of the rotating shell I are formed, a barrel I extending axially is arranged in an inner cavity of the rotating shell I, and the inner end of the barrel I is combined with the small opening end of the rotating shell I; a plane thread of the rotating shell II is a smooth curve, two ends of the curve are spaced from an axis by certain distances, so that a large opening end and a small opening end of the rotating shell II are formed, a barrel II extending axially is arranged in an inner cavity of the rotating shell II, and the inner end of the barrel II is combined with the small opening end of the rotating shell II; and during anastomosis, the barrel I axially slides into the barrel II, and under effects of magnetic attraction force, the large opening end of the rotating shell I and the large opening end of the rotating shell II are oppositely combined so that a broken end of an anastomosis part between the large opening end of the rotating shell I and the large opening end of the rotating shell II is clamped tightly.