The invention relates to compound mustard flower oil pills, which are characterized by comprising the following components in percentage by weight: 64-81% of mustard flower oil, 11-16% of safflower seed oil, 1-5% of flax oil, 4-7% of silkworm chrysalis oil and 3-8% of celery seed oil. The compound mustard flower oil pills take mustard flower oil as a main component, have high content of monounsaturated fatty acid, are stable and safe, and have fat-lowering function; and by adding silkworm chrisalis oil and celery seed oil, the fat-lowering efficacy is enhanced and the fatty acid ratio meets the nutrition standard, thus the compound mustard flower oil pills can prevent some chronic diseases caused by imbalance in oil intake and reduce the occurrence of arteriosclerosis. The compound mustard flower oil is prepared into pills, thereby being convenient for storage, carrying and administration. The mustard flower oil pills provided by the invention are low in price and have no significant toxic or side effect, and have better efficacy if propolis total flavone with definite blood-fat-lowering efficacy is added.