The invention discloses a solar street lamp for garden use. The solar street lamp for garden use comprises a base, a first column body and a second column body; the first column body is arranged on the surface of the base; the second column body is arranged on the surface of the first column body; a connection base is arranged at the top end of the second column body; an arc-shaped rain baffle isarranged at the top end of the connection base; a solar panel is arranged on the surface of the arc-shaped rain baffle; an inverter is arranged in the arc-shaped rain baffle; a storage battery is arranged on one side of the inverter; a lamp base is arranged at the bottom end of the arc-shaped rain baffle; a lamp bulb is arranged at one end of the lamp base; a transparent lamp shell is arranged onthe outer side of the lamp base; a buffering plate is arranged in the first column body; a driving motor is arranged on the surface of the buffering plate; and a hydraulic lifting device is arranged at the top end of the driving motor. According to the device, the solar street lamp can be subjected to height adjusting according to the height difference of garden trees and the terrain difference, so that the solar street lamp can have the function of adjusting the height in real time, and the problem that because of the fixed height of an existing street lamp and the problem of the tree heightand the terrain height, the street lamp cannot absorb sunlight is solved.