Abstract: Objective To survey the effect of pit and fissure sealants program sponsored by the government for children age from 7-9 years of Suzhou city one year ago,and to investigate the factors influencing the effect of project,then provide reasonable suggestions for subsequent work.Methods Cluster sampling 20 primary schools in 2014,review the sealants retention of the teeth of the children received pit and fissure sealants in 2013.Based on the results,the effectiveness of pit and fissure sealants as a government-sponsored public health program was evaluated.Results The retention rate of sealants was 71.1%.The sealants retention rate of teeth which had suspicious caries (68.58%) or deep and narrow grooved chewing teeth(69.89%) was lower than that of the teeth which had average nest deep groove(71.98%).The retention rates of different schools had significant difference(P<0.05).The retention rates was no statistically significant difference between the Maxillary molars and Mandibular molars(P>0.05).Conclusion The retention rate of sealants after one year is not high,reasonable organization and management are important factors influencing the effect of program,in addition to the material properties,the clinical operation and the selection of indications.The effect of the program should to be improved from several aspects.