ABSTRACT The purpose of this research are: 1) know the oyster mushroom cultivation techniques which are run by Oky Jamur Tiram. 2) analyzing the costs, reception and revenue of white oyster mushroom cultivation is carried out by farmers Oky Jamur Tiram. 3) analyzing the margins, profits, and marketing efficiency of white oyster mushrooms business by farmers Oky Jamur Tiram. The research was do…