The invention provides a comprehensive repair method for residual quinclorac herbicide in a tobacco field, and belongs to the technical field of herbicide residual soil treatment and repair. The method comprises the steps of detecting quinclorac in the soil after harvesting grains; deeply harrowing to sun the upturned soil in case of soil exceeding the standard (more than 0.05mg/kg); irrigating water to promote discharging one month before transplanting tobacco seedlings; applying quick lime or dolomite powder to the field surface under proper soil moisture content in order to achieve acid-base neutralization; applying straw biochar or carbon based organic fertilizer to the bottom of the ridge while ridging and fertilizing the flue-cured tobacco in order to physically absorb; spraying the leaf surfaces through a mixed solution of gibberellin (920), monopotassium phosphate and mancozeb or zineb in case of quinclorac chemical injury (the leaves are deformed in rat-tail shape) occurring on the flue-cured tobacco in the resettling stage or vigorous growing stage of the flue-cured tobacco so as to relieve or remove chemical injury. With the adoption of the method, the residual quinclorac in the soil of the tobacco field can be removed; in addition, the acidity of the soil can be reduced; the tobacco soil-borne disease can be prevented; the soil health can be promoted; the tobacco output and quality can be increased.