PROBLEM TO BE SOLVED: To provide a method for producing a plastic oil-and-fat composition, exhibiting a sufficient hardness, good plasticity and heat resistant shape-holding property at normal temperatures (10 to 30°C) even in the case of without substantially containing a trans-fatty acid and also having a low saturated fatty acid ratio in its constituting fatty acid composition, and to provide a plastic oil-and-fat composition produced by the above method.SOLUTION: The method for producing the plastic oil-and-fat composition by using a hermetically closed type continuous process scraping tube type cooling machine comprises adding an oil-and-fat composition 2 having a lower melting point of its oil phase than that of an oil-and-fat composition 1 in a molten state to the oil-and-fat composition 1 in a state of still having flowability on completing plasticization by cooling, mixing and further cooling, and a plastic oil-and-fat composition prepared by the above method is also provided.COPYRIGHT: (C)2010,JPO&INPIT【課題】実質的にトランス脂肪酸を含有せず、且つ、構成脂肪酸組成における飽和脂肪酸比率が低い場合であっても、常温(10℃~30℃)で十分な硬さと良好な可塑性、耐熱保型性を示す可塑性油脂組成物を得ることができる可塑性油脂組成物の製造方法、及び、該製造方法により製造された可塑性油脂組成物を提供すること。【解決手段】密閉型連続式掻き取りチューブ式冷却機を用いて製造する可塑性油脂組成物の製造方法であって、冷却可塑化終了時の未だ流動性を有している状態の油脂組成物1に、油相の融点が油脂組成物1より低い油脂組成物2を、溶解した状態で添加、混合後、さらに冷却することを特徴とする可塑性油脂組成物の製造方法、及び、該製造方法により得られた可塑性油脂組成物。【選択図】なし