The purpose of the research are to describe business activities of BUMP, perception of farmer on BUMP and participation of farmer on BUMP at Jogonayan, Ngablak, Magelang. This research use descriptive analysis with qualitative methode. the Data related of activities BUMP, perception and participation of farmers in BUMP on this research were obtained from field observation and in-depth interviews. Results of the research show that the business activity of BUMP PT Mandiri Tunas Merbabu is a marketing activities in Jogonayan peasant production. In general the perception of farmers is unfavorable to the institutions, functions, capital, activities and administrators BUMP. However, there are some farmers who have a good perception for institutions, capital and activity of BUMP. Farmers participation in BUMP is establishment of BUMP, menegerial activities and business activities. Judging from the level of voluntary participation by farmers is participation for government encouragement and participation for social responsibility