Abstract: The nanotubes and their array of polystyrene（PS）,polyamide66（PA66）,polypropylene （PP）,acrylonitril-butadiene-styrene copolymer（ABS）,thermoplastic polyurethane（TPU）were prepared by depositing a solution or melt of a polymers into anodic aluminum oxide（AAO）template with smaller pore about 200nm.Their submicrostructure and morphology were investigated by scanning electron microscopy（SEM）and transmission electron microscopy（TEM）.The relationship among the properties of polymers,the preparation methods,the submicrostructure of the polymer nanotubes were analyzed.The formation mechanism of polymer nanotubes was also discussed.