In order to investigate the effects of plastic mulch on topsoil temperature and emergence of sugarcane different covering plastic films including light degradation film mulching 1 and 2(GJ1 and GJ2), general film mulching(DM) and no film mulching(CK) were compared. Results showed that plastic film mulching significantly increased soil temperature and moisture compared with the control, DM GJ1 GJ2 CK. Seedling emergence of covering plastic film treatments were significantly high than that of the CK, emergence of GJ1 was the highest,and but there was no significant difference between GJ1 and DM.