The invention discloses a safe and efficient treatment device of polluted soil. The device comprises a feeding pipe, a pulverizing machine, a treatment box, a drug spraying tank, a drug adding pipe, aspraying row, a heating device, a rotary circular platform, a discharging pipe and an ultraviolet lamp, the feeding pipe is arranged on the top of the treatment box, the pulverizing machine is arranged in the treatment box, one side of a shaking plate is hinged to the inner wall of the treatment box, a rotary motor is installed in an oblique chamber, a rotary shaft is arranged on the rotary motor, the rotary circular platform is arranged on the top of the rotary shaft, turning cutters are uniformly arranged on the side wall of the rotary circular platform, the drug spraying tank is installedon the top of the treatment box, the drug spraying tank is communicated with the spraying row through a liquid delivering pipe, the spraying row is arranged in the top end of the treatment box, the heating device and the ultraviolet lamp are installed on the inner wall of the treatment box, and universal wheels are arranged on the side face of the bottom end of the treatment box. By means of the treatment device, sterilization is conducted on the polluted soil, the breeding and spreading of harmful germs are prevented, the safety is improved, the soil treatment effect is improved, the structure is simple, and the device is convenient to use to facilitate popularization.