The invention discloses a rotating performance adjustable magic cube. Center blocks, prisms and corner blocks are arranged around a three-dimensional cross axle to form a regular hexahedron structure;a lower cover, an upper cover, a spring, a floating part, a floating amplitude adjustment structure and an elastic resilience adjustment structure are included, the floating part moves up and down along the axle end of the three-dimensional cross axle, and the floating part is close to or away from a positioning column so as to adjust the space between the floating part and the positioning column; the upper cover rotates relative to the floating part, and the upper cover is close to or away from the lower cover so as to adjust the spring compression; each magnetic positioning force adjustmentassembly comprises a fixed part, adjusters and magnets, and each adjuster comprises a rotating block and an eccentric block, the magnetic mounting surfaces of the prisms and corner blocks are respectively provided with fixed holes with magnetic positioning force adjustment assemblies, magnets are arranged on the two adjacent magnetic mounting surfaces of the prisms and the corner blocks, by rotating rotating blocks on the magnetic mounting surfaces of the prisms and the magnetic mounting surfaces of the corner blocks, the rotating blocks drive the eccentric blocks to rotate so as to adjust the space between the two adjacent magnets on the prisms and the corner blocks. The magic cube has the advantage of being good in rotating performance.