As a new organic fertilizer，vermicompost had a positive effect on soil improvement.Melon was used as the test crop，the effects of treatments of earthworm manure alone( T1)，earthworm manure combined with biochar and zeolite(T2)，earthworm manure combined with PAM(T3)，earthworm manure combined with biochar，zeolite and PAM(T4) on yield，quality of melon and soil physical and chemical properties were analyzed and compared.The results showed that compared with other treatments，the yield，vitamin C content，soil organic matter，total nitrogen，available phosphorus and available potassium of T4 treatment were the highest，reaching 23539.65 kg/hm²，16.17 mg/100 g，organic matter 27.08 g/kg，total nitrogen 2.64 g/kg，available phosphorus 403.61 mg/kg and available potassium 302.02 mg/kg，respectively，and the titratable acid content was low，being 0.12%. In addition，there was no significant difference in the soluble solids between T4 and T2 treatment with the highest content，and the difference in carotenoid between T4 and T3 treatment with the highest content was not significant. In conclusion，soil improvement measures of using vermicompost combined with biochar，zeolite and PAM had a positive effect on improving the quality of melon and improving the soil planting environment.