The concept of public services is an integral part in understanding the performance of the government in providing services to the community, so that if the performance of the services provided by the government is good and good, of course public trust in the government will be high. This study aims to analyze the realization of the performance of the Investment and Integrated Services Agency. One Stop (DPM-PTSP) NTB Province in providing public services for licensing and non-licensing for foreign investors and domestic investors. The method used is a qualitative descriptive approach, using interview instruments, documentation and observation. The results showed that the performance of public services at the Office of Investment and One Stop Service (DPM-PTSP) of Nusa Tenggara Province was good and the score was quite high based on the results of a survey of community satisfaction with services at DPM-PTSP NTB with a score of 84.71%. . Thus, it shows that the service performance provided by DPM-PTSP to its customers is quite good