Provided are a door-closure structure (100) for a rotary type refrigerator door (200) and a side-by-side refrigerator having it, wherein the rotary type refrigerator door (200) is mounted on the refrigerator body. The door-closure structure (100) comprise: a hinge assembly (1), a supporting plate (2) extending along the lateral direction, a mask body (3) fixed on the rotary type refrigerator along the longitudinal direction, wherein a hinge plate (12) provided with a hinge hole (121) is connected to the rear end of the hinge body (11); and a hinge shaft (13) cooperated with the hinge hole (121). The supporting plate (2) is connected with the front end of the hinge body (11), and a first hole (21) is set on the supporting plate (2). The inside of the mask body (3) defines a mask chamber, and a second hole (31) is set on the surface of the mask body (3). The clamping block (4), a part of which can extend out of the mask body (3) through the second hole (31) on the surface of the mask body (3), is telescopically and movably disposed inside the mask chamber, and the part extending out of the mask body (3) can be clamped with the first hole (21).