This research was carried out with the aim of: Knowing the general description of soybean farming in Tanjab Timur Regency, Analyzing the level of technical efficiency of soybean farming in Tanjab Timur Regency, Analyzing the level of technical inefficiency of soybean farming in Tanjab Timur Regency. The analytical tool used is Stochastic Frontier production function analysis with Cobb- Douglas and calculating the level of efficiency and inefficiency. This research was conducted in Tanjab Timur Regency. The sampling technique was the census method with a sample of 120 farmers. The data used is secondary and primary data. The research results showed that: The condition of the land in the research area is tidal land with an average production of 1,039, The use of production inputs in the research area is technically efficient, reaching 0.767. Socio-economic factors such as age and education variables have no real effect and increase inefficiency while experience variables, number of family members and extension have no real effect, but increase technical efficiency or reduce inefficiency, Simultaneously or partially age, education, experience, number of family members and extension has no real effect on production.