Disclosed is a solar power lawn lamp, comprising a housing (1), a plug bracket (2), a lamp cover (3), an illuminating device, a control device and a power supply, wherein the lamp cover (3) is arranged under the housing (1), and the shape of the upper part of the lamp cover (3) matches that of the lower part of the housing (1); the plug bracket (2) is provided with a light transmission hole (21), two sides of the light transmission hole (21) are provided with reinforcing ribs (22), and threaded holes (23) for fixing the housing (1) are arranged in the plug bracket (2); a mounting face (11) is arranged in the inner cavity of the housing (1); the illuminating device comprises a PCB board (4) and a lens (5), wherein a lamp bead is arranged on the PCB board (4), and the PCB board (4) and the lens (5) are arranged in the lamp cover (3); the power supply comprises a solar power board (6) and a storage battery (7) connected to the solar power board (6), wherein the solar power board (6) is arranged above the housing