A universal wheel group, the universal wheel group comprises: a base structure, comprising an upper base and a lower base which form a cavity; a wheel ball, locked in the cavity so as to roll in all directions, wherein a bottom of the lower base is provided with an opening enabling a part of the wheel ball to protrude out of a lower end face of the lower base to form an exposed rolling spherical surface, and an inner diameter of the opening is smaller than a diameter of the wheel ball; the universal wheel group further comprises: rollers which are not less than three, wherein the rollers are arranged between an inner wall of the upper base and a surface of the wheel ball so as to roll; characterized in that the universal wheel group further comprises: a base structure, wherein the lower end face of the lower base is an oblique plane oblique towards a horizontal plane; spherical rollers and an elastic gasket, which is arranged between the inner wall of the upper base and the surface of the wheel ball, wherein roller mounting bases in a bowl shape, in one-to-one correspondence with the rollers which are not less than three, are distributed uniformly on a bottom of the elastic gasket in a circumferential direction, and grooves matched with the shapes of the rollers are arranged on the roller mounting bases. a base structure, comprising an upper base and a lower base which form a cavity; a wheel ball, locked in the cavity so as to roll in all directions, wherein a bottom of the lower base is provided with an opening enabling a part of the wheel ball to protrude out of a lower end face of the lower base to form an exposed rolling spherical surface, and an inner diameter of the opening is smaller than a diameter of the wheel ball; the universal wheel group further comprises: rollers which are not less than three, wherein the rollers are arranged between an inner wall of the upper base and a surface of the wheel ball so as to roll; characterized in that the universal wheel group further comprises: a base structure, wherein the lower end face of the lower base is an oblique plane oblique towards a horizontal plane; spherical rollers and an elastic gasket, which is arranged between the inner wall of the upper base and the surface of the wheel ball, wherein roller mounting bases in a bowl shape, in one-to-one correspondence with the rollers which are not less than three, are distributed uniformly on a bottom of the elastic gasket in a circumferential direction, and grooves matched with the shapes of the rollers are arranged on the roller mounting bases. rollers which are not less than three, wherein the rollers are arranged between an inner wall of the upper base and a surface of the wheel ball so as to roll; characterized in that the universal wheel group further comprises: a base structure, wherein the lower end face of the lower base is an oblique plane oblique towards a horizontal plane; spherical rollers and an elastic gasket, which is arranged between the inner wall of the upper base and the surface of the wheel ball, wherein roller mounting bases in a bowl shape, in one-to-one correspondence with the rollers which are not less than three, are distributed uniformly on a bottom of the elastic gasket in a circumferential direction, and grooves matched with the shapes of the rollers are arranged on the roller mounting bases.