Objective： Lard oil （LO） and soybean oil （SO） were compared to evaluate the effects of a functional blend oil（BO） on the blood pressure， tissue lipids and redox state in rats at different energy levels. Methods： Ninety male Wistar rats were divided into three groups and fed for 12 weeks with LO， SO and BO. Each group was divided into low， middle and high fat groups and fed with oil supply ratios of 6.7%， 10.9% and 48.1%， and the blood pressure index， tissue lipids index and redox index were detected. Results： Under high-fat diets， BO could significantly reduce rats body weight， fat weight， and body fat ratio； significantly increase plasma， liver， and adipose tissue ALA / LA ratios， reduce plasma TG levels， and keep rats more stable. Systolic， diastolic and mean pressure. In addition， BO can significantly increase T-AOC and GSH-PX activity in rats' plasma and heart， reduce ROS and MDA levels. Conclusion： Functional blend oil has the effect of reducing the body fat ratio and improving blood lipid and blood pressure in obese rats， and the mechanism may be related to its content of ALA / LA and a variety of lipid functional components.