The invention belongs to the technical field of contaminated soil repairing treatment, and particularly relates to a heavy metal (chromium VI)-contaminated soil different-position chemical leaching repairing technology and device. The chromium-contaminated soil different-position leaching repairing device comprises a one-level scrubbing unit, a two-level scrubbing unit, a waste liquid treatment unit and a medicament adding unit. The one-level scrubbing unit comprises a pulper, an even mixing and homogenizing device, a one-level vibration screen and a one-level cyclone. The two-level scrubbing unit comprises a strong stirrer, a two-level cyclone and a two-level vibration screen. The waste liquid treatment unit comprises a thickener, a to-be-pressed mud tank and a plate-and-frame filter press. The medicament adding unit comprises a medicament tank. The chromium contaminated soil different-position leaching repairing technology comprises one-level leaching, two-level leaching and waste liquid treatment. The different-position leaching repairing technology can be flexibly adjusted according to the situation of soil or bottom mud containing various pollutants. The different-position leaching repairing technology device can be moved to a next project site to be used again after the project is over, and therefore the equipment utilization rate can be increased, and cost can be reduced.