The invention relates to a mixing machine and especially relates to an efficient fertilizer mixing machine for gardens. The technical problem to be solved by the invention is to provide the efficientfertilizer mixing machine for gardens, that is capable of uniformly and fully mixing. In order to solve the technical problem, the efficient fertilizer mixing machine for gardens, provided by the invention, comprises a first mounting plate, a collecting box, a stirring mechanism, a linking mechanism, a crushing mechanism, a driving mechanism, a swinging mechanism, a valve, a discharging pipe, a first fixing rod, a second fixing rod, a feeding hopper, a sieving plate, a flat belt, a third fixing rod, a fourth fixing rod, a mixing tank, a first support plate and a second support plate; the collecting box is arranged at the top of the first mounting plate; the driving mechanism is fixedly arranged at the top of the first mounting plate. The efficient fertilizer mixing machine for gardens canachieve the effect of uniformly and fully mixing.