Abstract: Objective:To investigate the intervention effects of the evidence-based oral nursing mode on the periodontal health in community service worker.Methods:The oral health education programme in 60 community service workers with oral diseases was formulated according to the principles of evidence-based nursing.The awareness rate of oral health knowledge and correct rate of health behavior were investigated using the self-design questionnaire before intervention and after 6 months of intervention.The dental plaque indexes were detected before intervention and after 1,3 and 6 months of intervention.Results:The awareness rate of oral health knowledge and correct rate of health behavior after invention were significantly higher than before intervention(P<0.01).The dental plaque indexes after 1,3 and 6 months of intervention were significantly lower than before intervention(P<0.01).Conclusions:The evidence-based oral nursing can effectively improve the awareness rate of oral health knowledge,oral health behavior and reduce the plaque index,which is benefic for the oral and periodontal disease prevention and health care,and worthy of application in clinic.