Meicai vegetable as a specialty of Guangdong Huizhou has health effect of digestive, lipid-lowering, antihypertensive and is loved by people. The much salt during the traditional pickling can lead to high blood pressure for people who consume it for a long time. Moreover, the harsh processing conditions and high content of nitrite are difficult to meet the requirements of modern consumers for health food. This article mainly reviews the plum food nutrition and nitrite reduction methods to provide certain reference for the preserved vegetable research and processing.