An oiling system for a Rubik's cube (1), comprising a center block body (3). The center block body (3) comprises a center block housing (31) and a center block housing cover (32) covering the center block housing (31); an oil storage module (63) is provided between the center block housing (31) and the center block housing cover (32); and an oil outlet hole (313) is formed in the bottom of the center block housing (31). The solution has a simple structure; the oil storage module (63) is provided in the center block (3) of the Rubik's cube (1), so as to facilitate oiling the Rubik's cube, thereby relieving the friction of the Rubik's cube, and facilitating prolonging the service life of the Rubik's cube; and lubricating oil is added to the Rubik's cube, so that the Rubik's cube is enabled to rotate more smoothly, the experience of playing the Rubik's cube is optimized, and the Rubik's cube is more attractive to consumers.
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