The degradable plastic, which uses reproducible material as main raw material, is the best substitute of conventional plastic. Meanwhile, it can be degraded in environment without any harm and the same physical and mechanical performances as ordinary plastic products and some other special performances, is wildly applied nowadays. Such us biodegradable films=degradable snack boxes=degradable bags and so on. Our product was awarded national invention patent(ZL93111901.4). Our product include biodegradable starch plastic KLM series(master batch),Full biodegradable plastic master batch,Biodegradable starch plastic KLS series(resin) and Full biodegradable resin