The invention provides a remediation method for pesticide-contaminated soil. The method comprises the following steps: step 1, crushing the pesticide-contaminated soil, and performing sieving to obtain secondary soil with a particle size of 80-100-mesh; step 2, adding a catalase solution into the secondary soil, performing uniform dispersion, performing shaking at a constant temperature, and adjusting the pH to 7 to obtain tertiary soil; and step 3, heating the tertiary soil to 30-40 DEG C, performing solid-liquid separation, collecting the liquid portion, performing operations in the step 2 and the step 3, and performing backfilling treatment on the solid portion. The method provided by the invention has the following beneficial effects: 1, the method overcomes the defects that chemical and physical methods have high treatment costs of the residual problem of organic pesticides, have secondary pollution to soil, change properties of the soil and have poor operability.