In the Maria gorlic germplasm base of Wangpi Town，Jinxiang County，Jining City，Shandong Province，the maingarlic exporting area in China，garlic fields have been cultivated for 25 years.The effect of 30% reduction of chemical nitrogenfertilizer application，30% reduction combined with organic fertilizer/bio -organic fertilizer and inoculants combination technologyon garlic growth，yield and quality was investigated.The results showed that compared with the conventional fertilization，30%reduction in chemical nitrogen fertilizer application resulted in the decrease of garlicgrowth，garlic yield and partialqualities；30% reduction in chemical nitrogen application combined with organic fertilizer and inoculants combination technology maintained garlicgrowth and garlic yield and improved garlic quality；30% reduction in chemical nitrogen fertilizer application combined with bio -organic fertilizer and inoculants combination technology significantly improved garlic growth，garlic yield and garlic quality.It can be seen that the chemical nitrogen fertilizer reduction technology combined with bio-organic fertilizer and inoculants is a fertilizer-reduction and efficiency-increasing technology which is suitable for continuous cropping garlic in Chinese main garlic producing areas.