A novel leaf mustard hybrid with hau cytoplasmic male sterility was used to breed a leaf mustard cross with strong heterosis (0912A×X2).The basis of heterosis was studied.The safety standards of nitrate and nitrite in the pickled process of 0912A×X2 were investigated.Results of orthogonal experimental design showed that nitrate content and nitrite content of 0912A×X2 was in the lowest level of optimization marinated process mode.Results of early marinated ( 0-15 d ) showed that the optimal combination of low level of nitrate was under the condition at 30℃ of pickled temperature,75 mg/kg of sodium sulfite dosage,3% salt mass fraction,0.02 g/kg of Vc dosage.Optimized low level of nitrite was at 10.7℃ of pickled temperature,50 mg/kg of sodium sulfite dosage,1% salt mass fraction,0.01 g/kg of Vc dosage.Optimal low level of nitrates of late pickled ( 16-31 d ) was at 25℃ of pickled temperature,0.0 mg/kg of sodium sulfite dosage,1% salt mass fraction,0.03 g/kg of Vc dosage.Optimized combination of low level of nitrite was at 10.7℃ of pickled temperature,50.0 mg/kg of sodium sulfite dosage,1% salt mass fraction,0.01 g/kg of Vc dosage.It is indicated that the use of new mustard leaf mustard hybrid bred with cytoplasmic male sterility has obvious heterosis and pickled processing quality.It will provide a theoretical basis for developing sources of material and processing leaf mustard hybrids in the future.