The extraction mode of orange-yellow pigment from Gardenia is depended upon the extraction time, extraction temperature and volume of solvent. The amounts of the extracted-pigment (C) is proportional to the log ${ heta}^{1.15}$ of extraction time $({ heta}:0{cdots}{cdots}{cdots}60$ min.), the log $T^{3.73}$ of extraction temperature $(T:5{cdots}{cdots}{cdots}60^{circ}C)$ and the log $S^{3.7}$ of volume of solvent $(S:5{cdots}{cdots}{cdots}50ml)$ at $18^{circ}C$ for 10 minutes. Finally, the general emperical equation was derived as follows; C=1.15 log ${ heta}$+3.73 log T+3.7 log S-7.0