This study was research and development which using qualitative and quantitative methods. There were 4 purposes; 1) to study the  problems of service proving, 2) to formulate the development strategy and implement it, 3) to compare service situation before and after the improvement of services quality, 4) to compare the level of clients satisfaction before  and after the improvement of services quality.  This study had 2 groups of samples, there were 364 clients selected from 3960 clients of service providing at Bangnampriew Provincial Police Station,  and 20 polices who the service provider. The research instruments included; questionnaire, interview form, focus group guidelines, and training project. 
The results found; the level of clients satisfaction after the improvement of services quality was better than before (from middle to high). The strategic development plans were developed; there were training service for providers, small group meeting, motivation simulating, authority discrimination, simplification of working process, creating a public relation kiosks,  distribution of public leaflets and common handbooks, car park, and newspaper providing, after implemented service development strategies. The average satisfaction level of service users increased significantly of 0.01
