The invention relates to a marking device, in particular to a multi-functional marking device used for a garden. The technical problem is solved by providing the multi-functional marking device used for the garden. In order to solve the problem, the invention provides the multi-functional marking device used for the garden. The device comprises a water outlet pipe, a first valve, a water tank, a marking board, a support, lifting equipment, a support frame, sprinkling equipment, a first magnet, a second magnet, a cover plate, a second pulling rope and the like. The support is provided with the lifting equipment. The lower end of the support is tapered. The lifting equipment is connected to the support frame, the upper end of which is connected with the water tank. The bottom end on the right side of the water tank is connected with the water outlet pipe, on which the first valve is arranged. The front side wall of the water tank is provided with the marking board. The multi-functional marking device used for the garden has the following beneficial effects: heights of the water tank and the marking board are adjusted; the device is beneficial for watching by visitors; the sprinkling equipment is used for greening turf and ground on the garden; and the visitors for the garden can be protected against sun and rainwater.