The invention provides multifunctional dumbbell ball sport equipment, and relates to sport fitness equipment capable of being used indoors and outdoors and a use method of the equipment. The multifunctional dumbbell ball sport equipment is structurally provided with a ball arm system, a dumbbell ball, a ball frame system, a motor and transmission system, an information system and a dumbbell ball movement control facility. Rotation, rise and fall of a ball frame can be controlled and adjusted; a ball rod and the ball frame are connected through a rod sleeve mounting system, a rotary shaft, a balance tension spring, a point position spring and a ball return spring, the dumbbell ball can run universally, and the range is controlled; when the dumbbell ball is hit, the ball rod axially penetrates through and slides in a rod sleeve, the far and near gravity of the ball changes, the high and low point position rises and falls, or the ball rotates around the rod sleeve mounting system, and under the force effect of the balance tension spring, the point position spring, the ball return spring and the like, the dumbbell ball tends to return to an original position to be hit again; the ball rod can be used as a wooden stinger, and the ball frame can be used as a bicycle pedal and an elastic stepping machine.