Objective To elucidate the action of carbohydrates metabolismassociated genes on rat liver regeneration (LR). Methods We obtained the above genes through collecting website data and retrieving related articles, and detected their expression changes in rat LR with Rat Genome 230 2.0 array, then determined LRassociated genes by comparison of gene expression discrepancy between partial hepatectomy (PH) group and sham operation (SO) group. Results 118 carbohydrates metabolism genes were proved to be LRassociated. Number of the initial and total expressing genes occurring in forepart (0.5-4 hours after PH), prophase (6-12 hours after PH), metaphase (16-66 hours after PH) and anaphase (72-168 hours after PH), were 33, 6, 68, 7 and 68, 44, 210, 83, respectively, demonstrating that expression of these genes were triggered mainly at the initial stage of LR, and functioned in different phases. The number of their upregulation and downregulation was 205 and 200, and their expression patterns were classified into 12 types, implying that the cellular Carbohydrate metabolism during LR were characterized by diversity and complication. Monosaccharides and glycogen metabolismassociated genes, glycoprotein and glycosphingolipid (mainly gangliosides) biosynthesisassociated genes were upregulated almost in the whole LR. In contrast, oligosaccharides and glycosaminoglycans biosynthesisassociated ge