UDP-sugar-producing pyrophosphorylase is one of the most important enzymes in plant saccharide metabolism, catalyzing the synthesis and metabolism of UDP-sugar. In this study, we summarized the research progress of three types of UDP-sugar-producing pyrophosphorylase in the evolutionary relationship, structural characteristics, protein location, oligomerization, physiological function Etc.. It provides basis for further clarifying the relevant properties and important role in the progress of plant sacc...