This study aims to analyze the factors that affect the supply of garlic in Indonesia. The type of model used in the estimation process is Nerlove supply model. The results showed that all equations in the model are significant and qualified to statistical tests. The factors that significantly affect garlic harvested acreage this year among others garlic harvested area at one previous year, garlic harvested area at two previous years, rain fall, real price of urea at one previous year and real price of rice at previous year. Garlic productivity this year only significantly affected by garlic productivity at one previous year. While imported garlic is significantly affected by Indonesian garlic production, garlic import tariffs and real exchange rate. In the short term, the entire exogenous variables in the model are inelastic on its endogenous variables. But in the long term harvested area at one previous year and harvested area at two previous year are elastic on harvested area this year, while garlic productivity elastic on garlic productivity this year.