The purposes of this research were (a) to study the factors that influence farmers to apply intercropping of coffee and pepper; (b) to analyze the cost efficiency of the use of inputs in inter-cropping; (c) to calculate the income of inter-cropping of coffee and pepper. This research was carried out in Muara Rungga Village, Pasemah Air Keruh Subdistrict, Empat Lawang Regency. Data were collecte…