The main reasons for the rise in edible oil prices are as follows: First, the international soybean futures price has risen. Second, the higher prices of palm oil and other related oil products indirectly promoted the rise of soybean oil. Third, the opening price of rapeseed has increased this year due to the decrease in rapeseed planting area. Fourthly, due to the new demand for biodiesel, the global supply of rapeseed is more tense, which is one of the reasons for the high price of vegetable oil and the firm price of soybean oil.