In order to reveal the effect of a new type of microbial fertilizer bamboo fiber polymer bacterial fertilizer on improving the yield and quality of soft seed pomegranate，using Tunisian soft seed pomegranate in Fule Village，Huili County as the test material，changes of yield and quality of pomegranate under bacterial fertilizer with the bamboo fiber polymer treatment were explored.The results showed that the bamboo fiber polymer bacterial fertilizer treatment significantly increased the content of soil nutrients and microorganisms in the pomegranate fruit orchard，promoted the growth of soft-seed pomegranate，and improved its yield and quality.Compared with regular fertilization，the pomegranate fruit size was more uniform under the treatment of bamboo fiber polymer bacterial fertilizer，the fruit weight and 100-seed weight increased by 29.44% and 20.93%，respectively，and the yield per plant increased by 28.74%； the reducing sugar，soluble solids，Vc content，sugar-to-acid ratio and solid-acid ratio of fruit kernels increased by 7.38%，10.77%，26.37%，68.85% and 70.36%，respectively，reaching a significant difference level(P<0.05).Bamboo fiber polymer bacterial fertilizer can promote the soil nutrient and microbial content of pomegranate orchard in Huili area，thereby improving soil biological activity，enhancing soil fertility，and significantly increasing fruit yield and quality.The application of bamboo fiber polymer bacterial fertilizer on soft seed pomegranate in Huili area shows that it has the ability to improve soil water and fertilizer supply in seasonal arid areas，and has important guidance and application value in actual production.