Silkworms are insects or moths that spawn high-quality thread. In general, this insect is beneficial in the production of silk fabrics. This fabric has tremendous economic worth; thus, many people are interested in cultivating silkworms. This research aimed to determine the costs, production, revenue, profits, and feasibility (RC ratio) of silkworm farming in Pasuruan, East Java. Descriptive analysis was employed in this study. The study was conducted in a community of silkworm farmers in Pasuruan in partnership with CV Kupu Sutera. A total of 72 people were considered as respondents. The findings revealed that: 1) silkworm farming production factors included eggs, labor, cage and equipment depreciation, and transportation fuel. 2) A business analysis was performed per silkworm production cycle, with a cost of IDR 37,646, dry cocoon output of 1.79 kg, wet cocoon production of 0.229 kg, revenue of IDR 453,225, and silkworm profit of 449,579. 3) The R/C on the silkworm farming business was 12.03. This rate indicated that for every IDR 1.00 spent cost, the silkworm farmer earns IDR 12.03 in revenue. Silkworm farming was thus feasible in Pasuruan, East Java.