Rainfall, land area, and subsidized fertilizer distribution system policies are predicted to affect the production of strategic crops in Lampung Province. This study aims to determine how much influence the rainfall, land area, and distribution system of subsidized fertilizers on the production of rice, corn and cassava in Lampung Province and determine the carrying capacity of climate, land and fertilizer distribution policies on the production of strategic food crops in Lampung. This study used a descriptive analysis method by taking data on rainfall, land area, subsidized fertilizer distribution system and time-series food crop production for 15 years (2002-2016). Data analysis used multiple linear regression with Eviews 9.0 software. Testing data using assumption tests (autocorrelation and multicollinearity), F test (overall), correlation coefficient (r), coefficient of determination (R). The results showed that each 1 mm/year increase in rainfall in Lampung Province from 2002-2016 would reduce rice production by 45.6 tons, corn by 87.97 tons and cassava by 733.6 tons. Meanwhile, every increase of 1 hectare of land in Lampung Province will increase rice production by 6.2 tons, corn 4.65 tons, and cassava 26.01 tons. In addition, the subsidized fertilizer distribution system variable which is also part of the production factor also plays a positive role in the production of rice, corn and cassava. The carrying capacity of rainfall, land area, and the distribution system of subsidized fertilizers on Lampung strategic food crop production are rice 96.1%, corn 86.9% and cassava 79.09%.