Exposure pathways to contaminated soils determine that the impact assessment of contaminated soils should be health risk-based, which use soil concentration, mg . kg(-1), rather than leaching concentration, mg . L-1, to evaluate the threat of contaminated soils to human health. In this study, desorption kinetics experiments with a real heavily Cr(VI)-contaminated soils of 600 +/- 28 mg Cr(VI) . kg-1were conducted at pH 6.8, 12.0 and 55, 90 degrees C, respectively. The final removals with pH 6.8 were 46.7% at 55 degrees C and 59.5% at 90 degrees C, respectively. It means that the insoluble Cr(VI) is the challenge to meeting the regulatory remediation limits and the remediation strategy for Cr(VI)-contaminated soils should be insoluble Cr(VI)-oriented. Reduction kinetics experiments with original and intensively pre-washed Cr(VI)-contaminated soils (600 +/- 28, 303 +/- 22 mg . kg(-1), respectively) were conducted at 55, 90 degrees C with reductants of FeSO4 and NaS2O5, respectively. Only for the intensively pre-washed Cr(VI)-contaminated soils, with reductant of FeSO4 and at 90 degrees C, the final residual Cr(VI) concentration was below detection limit. The final residual Cr(VI) concentrations of all others were more than 50 mg.kg(-1). Discussion shows that the reduction of insoluble Cr(VI) is more sensitive to temperature and thickness of precipitates than the types and excessive ratios of reductants. Both high temperature and pre-flushing are necessary for the remediation of real heavily Cr(VI)-contaminated soils. An electrochemistry flushing and reduction (EF& R) equipment was innovated here to realize high-temperature flushing-reduction process. Its design, operation, mechanisms are introduced and experiments show that E-F& R can remove soil Cr(VI) from 600 +/- 28 to 73 +/- 25 mg.kg(-1).