Abstract-Generally, Indonesian farmer has been doing cabbage farm (Brassica Oleracea L) from generation to generation, so the use of production factors cannot be measured exactly. This condition caused the use of production factors not efficient. Inefficiency also caused by the high of fertilizer and pesticide price, in fact the capital of farmer limited. The price of horticultural crops, including cabbage is fluctuative. Certainly, it will influence the farmer's income. The maximum benefit can be received by the allocation of production factors right. The research purposes to (1) analyze production factors that influence cabbage production, (2) assess the allocative efficiency of use of cabbage production factors, (3) assess the feasibility of cabbage farming. Research was done purposively in the Panti District, Jember Regency, East Java Province, Indonesia. Research method used was descriptive and analytic. The total of samples were 38 cabbage farmers that determined by proportional random sampling. The analytical tools used were CobbDouglass, linear regression, allocative efficiency and the R/C ratio.Research results produced a model Cobb-Douglass production function is Y=3.483X1 0.680