The invention discloses a hand-push type garden mower. The mower comprises a rack, a hand push rod, a first blade, a second blade, a lifting box body, an adjusting motor, a second driven gear, a limiting plate and a screw rod; a support side plate at the left side of the lifting box body is in threaded connection with the outer circumference of the upper portion of the screw rod and sleeves the outer circumference of the upper portion of the screw rod, a driving motor is fixedly mounted at the bottom of a main box body, the bottom of an output shaft of the driving motor is in driving connection with a rotating shaft, the outer wall of the bottom of the rotating shaft is fixedly provided with the first blade and the second blade separately, the bottom of an electric retractable rod is fixedly connected with the adjusting motor, an output shaft of the adjusting motor is fixedly connected with a driving gear, and the outer circumference of the lower portion of the screw rod is sequentially and fixedly provided with a first driven gear, the second driven gear and the limiting plate from bottom to top. The hand-push type garden mower is simple in structure, convenient to use, good in mowing effect, flexible to use and high in applicability, the heights of the blades are conveniently adjusted, and the remaining amount after mowing can be controlled.