The invention relates to an edible blend oil, which aims at solving the problem of the improper ratio between Omega-6 polyunsaturated fatty acid and Omega-3 polyunsaturated fatty acid in the current single plant edible oil and provides an edible plant blend oil with the ratio between Omega-6 polyunsaturated fatty acid and Omega-3 polyunsaturated fatty acid being the best, meeting the health need of Chinese residents and simultaneously being capable of controlling the amount and stability of saturated fatty acids. The technical keys are as follows: the edible blend oil is prepared with a hemp seed oil and another edible plant oil or other edible plant oils according to weight percentage; wherein, the hemp seed oil is 8 to 85 and the edible plant oil is 15 to 92; and the other edible plant oil can be as follows: grape seed oil, olive oil, camellia oil, rice bran oil, safflower oil, canola oil, sunflower oil, corn oil, linseed oil, sesame oil, rapeseed oil, soybean oil, peanut oil and other edible plant oils. The content of the saturated fatty acids does not exceed 15 percent and the ratio between Omega-6 and Omega-3 is 4-6:1.