The application rate of inorganic fertilizer is high for vegetable production in China，resulting in great potential of reducing inorganic fertilizer.Based on the analysis of sources of inorganic fertilizer input in Chongqing，we conducted a survey on the fertilizer consumption in vegetable production covering main vegetable species in Chongqing.A multi-sites experiment was carried out to investigate the potential for reducing inorganic fertilizer，the partially substitution of organic fertilizers for inorganic fertilizers and the impact on yield.The result showed that vegetable production consumed 35.3% of the total inorganic fertilizer in Chongqing in 2017，and its contribution to the increase in inorganic fertilizer use in chongqing from 2010 to 2017 was 61.4%，much higher then other crops. Our survey from 469 famers in vegetable production revealed that the average total inorganic fertilizer application rate is 502.7 kg·hm-2 (calculated in terms of N，P2O5，K2O).The inorganic fertilizer rate of multi-harvested vegetables (solanaceous fruit and melons vegetables)and shallow root vegetables (green leafy vegetables，cabbage and Chinese cabbage)was relatively higher，which also had the great potential for inorganic fertilizer input reduction，but deep root vegetable (rhizomes and tubers)applied relatively less inorganic fertilizer.The results of 54 experiments showed that partially substituting inorganic fertilizer with organic fertilizer significantly improved the application rate of organic carbon and organic nutrient (calculated in terms of N，P2O5，K2O)by 681.6 and 47.2 kg·hm-2，respectively，simultaneously increased the vegetable yield by 14.7% and decreased inorganic fertilizer input by 88.0 kg·hm-2，which accounting for 17.3% of the total inorganic fertilizer consumption.The nitrogen (N)，phosphate (P2O5)and potassium (K2O)fertilizer input were reduced by 27.26%，43.6%，17.2% respectively.Phosphate fertilizer had greater reduction rate than nitrogen and potassium fertilizer.In summary，the application rate of inorganic fertilizer is generally high for vegetable production in Chongqing，but multi-harvested vegetables and shallow root vegetables have greater inorganic fertilizer reduction potential. The use of organic fertilizers instead of inorganic fertilizers reduces the input of inorganic fertilizers and increases vegetable production.