disclosed are a biodegradable film and an enhanced biodegradable fabric and laminate prepared by laminated biodegradable films , which mainly comprise pbat or pbs , or a mixture thereof , pla and other degradable high molecular polymers , such as pbsa , pcl , pcl - bs and pha , to prepare pla , and a new mixture of pla and phas , or a mixture of pla with pbat and pbs , or a mixture of pla and phas with pbat and pbs or other degradable high molecular polymers . the new fabrics and laminates have a stronger biodegradability in an environment containing microorganisms and have a good shelf life , and good strength , agility and flexibility .