Micro Small and Medium Enterprises (SMEs) and Small and Medium Enterprises (SMEs) in the four cities of Bandung, Sumedang, Garut and Cianjur in West Java has a strategic role in economic development in West Java, because in addition to a role in economic growth andemployment work also plays a role in the distribution of development outcomes.This study analyzes the contribution of business conducted SMEs and SMEs in four cities of Bandung, Sumedang, Garut and Cianjur in order to achieve economic improvement in the four cities in terms of Gross Domestic Regional Product (GDRP) of each of the city coming from the SME sector and SMEs.Unit population in this study is SMEs and SMEs that have partnered businesses with medium-sized companies or other economic institutions in Bandung, Sumedang, Garut and Cianjur in West Java. In this study used survey methods, while the technique of data collection by means of random sampling and taken a sample of 151 respondents. Other data sources are derived from secondary data from institutions associated with the research. Based on the results obtained by the fact that SMEs and SMEs in all the four cities have been able to contribute to the value of regional gross domestic product (GDRP) at current prices of the four cities in West Java on average by 15%. While the contribution of SMEs to GDP West Java amounted to 6.53%, thus it can be concluded that the role of SMEs and SMEs have a considerable contribution to the development of the economy in West Java.