This research aims to analyse the implementation of the Kaili regional language preservation and development policy in Palu City. The policy implementation model uses theories from Van Metter and Van Horn, which affect the performance of public policy implementation consisting of six aspects, namely: (1) Policy objectives (2) Resources (3) Characteristics of implementing agencies (4) Communication between organizations (5) Socio-economic and political environment, (6) Disposition (Implementing attitude). The results of the study show that the implementation of regional language preservation and development programs in the city of Palu issued a number of regulations, namely in the primary school level curriculum the existence of subjects using language regions, naming street names with BDK and broadcasting tv shows using local languages, the proper implementation of a program is the result of commitment and understanding of the implementers of existing regulations / policies and being able to make local policies to strengthen the implementation of conservation and development of regional languages in the city of Palu.