▎ 摘　　要

NOVELTY - A sugarcane sponge dressing with continuous drainage is prepared by selecting natural sugarcane as raw material, removing lignin, hemicellulose and sugar to obtain sugarcane sponge, putting sugarcane sponge in silver nitrate solution in light-proof water bath for 15 minutes to 1 hour, performing in-situ reduction, processing upper surface of in-situ reduced sugarcane sponge by material with high photo-thermal effect or partially charcoaled so that upper surface of sugarcane sponge has good photo-thermal effect, and freeze-drying. USE - The method is useful for preparing sugarcane sponge dressing with continuous drainage. ADVANTAGE - The method enables preparing the sugarcane sponge dressing with better photo-thermal effect, better effect of simulating plant transpiration and high safety.