Objective To study the influence of community mental rehabilitation based on Deming Cycle (PDCA) management model on the quality of life of patients with chronic schizophrenia .Methods From January 2016 to June 2017,100 patients with chronic schizophrenia who agreed to community management in Wuxi were randomly divided into study group(n＝50) and control group(n＝50).Both two groups received traditional community mental health services ,meanwhile,the study group was provided with community mental rehabilitation based on PDCA model.All the patients were followed up for 1 year.The quality of life scales(SQLS),social disability screening schedule (SDSS) and family care index(APGAR) were assessed before and after one -year intervention.Results At the end of one year after intervention ,the scores of total quality of life ,psychosocial dimension ,motive and energy dimension , symptom and side effects in the observation group were (41.27 ±10.54) points,(38.37 ±10.84) points,(35.43 ± 7.46) points,(20.71 ±7.34) points,respectively, which were lower than those in the control group [(51.98 ± 7.43)points,(48.73 ±8.72)points,(47.67 ±6.98)points,(29.79 ±8.64)points] and before intervention [(54.37 ± 5.87)points,(49.78 ±4.73)points,(48.57 ±6.87)points,(33.17 ±10.42) points]( t＝5.87,5.27,8.47,5.66, 7.68,6.82,9.16,6.91,all P＜0.05).At the end of one year after intervention ,the social function score [(6.78 ± 2.84)points] of the observation group was significantly lower than that of the control group [(8.83 ±2.73) points] and before intervention[(8.97 ±2.18)points](t＝3.68,4.33,all P＜0.05),and the family social care index score [(8.75 ±2.04) points] was significantly higher than that of the control group [(7.04 ±2.36) points] and before intervention[(6.76 ±2.14)points] ( t＝-3.88,-4.76,all P＜0.05).There was a positive correlation between SDSS score and SQLS score (r＝0.41,P＜0.05).There was a negative correlation between SQLS score and SDSS score(r＝-0.35,P＜0.05).Conclusion The community mental rehabilitation strategy based on PDCA model can improve the social function and family social care ,effectively improve the quality of life of schizophrenic patients , while positively promote the rehabilitation of patients.