The invention discloses blueberry jam added with citrus peel and a preparation method thereof. The blueberry jam comprises the following components in parts by weight: 5-10 parts of citrus peel, 40-50 parts of blueberry fruits, 45-55 parts of white granulated sugar, 25-80 parts of water, 0.5-1.0 part of citric acid and 0.1-1.0 part of malic acid. The blueberry jam added with citrus peel disclosed by the invention has the following beneficial effects: the nutrition and mouthfeel of the blueberry jam are enriched, so that the healthcare effect is better; an artificial thickening agent is not needed to be added, and natural pectin and the like in the citrus peel are utilized, so that the blueberry jam is thick and uniform, and convenient to coat for eating; thirdly, an ultrasonic device is adopted under an acid-deficient condition to assist pre-melting of the pectin, so that the dissolution rate and utilization rate of the pectin substance in citrus peel powder are improved; fourthly, the stability of blueberry anthocyanin is strengthened, flavone substances contained in the citrus peel can delay photolysis and thermal decomposition of the anthocyanin in a storage period, so that the value of goods is ensured; fifthly, the whole process is more energy-saving and environment-friendly, so that the cost is saved.