淀粉/聚乳酸复合具有相对较好的力学性能和生物降解性能，价格也与石油基塑料最为接近，是极具应用前景的全生物降解塑性材料。在分析国内外聚乳酸、淀粉及其复合材料研究现状的基础上，对该类材料的技术发展方向和工业化前景进行了展望。

Starch/poly (lactic acid) composite is such a potential biodegradable composite with great expectation for its excellent mechanical properties and competitive price to petroleum–based plastic. This paper focuses on status of biodegradable plastics and the research progress on starch/poly (lactic acid) and their composites, and gives a figure of the trend of technology development and industrialization on these bio-based composites.