本发明提供一种热塑性聚氨酯纤维复合材料，它包括低熔点聚醚型聚氨酯薄膜层和嵌入到该低熔点聚醚型聚氨酯薄膜层内部的高熔点无纺布。其中，所述高熔点无纺布为纯高熔点聚醚型聚氨酯无纺布或复合型高熔点聚醚型聚氨酯无纺布。本发明还提供一种制备上述复合述材料的方法，具体步骤包括：提供一种高熔点无纺布；在真空条件下将混合有聚氨酯橡胶硫化剂的熔融态低熔点聚醚型聚氨酯材料浸入到所述高熔点无纺布中，经模具定型制得热塑性聚氨酯纤维复合材料。该制备方法工艺简单、适于自动化生产。本发明还提供一种该复合材料的应用。该热塑性聚氨酯纤维复合材料各层之间结合紧密，可作为风力发电机叶片保护膜使用。

The invention provides a thermoplastic polyurethane fiber composite, which comprises a low melting point polyether polyurethane film layer and a high melting point non-woven fabric embedded in the low melting point polyether polyurethane film layer. Wherein, the high melting point non-woven fabric is a pure high melting point polyether polyurethane non-woven fabric or a composite high melting point polyether polyurethane non-woven fabric. The invention also provides a method for preparing the composite material. The specific steps include: providing a high melting point non-woven fabric; The molten low melting point polyether polyurethane material mixed with polyurethane rubber vulcanizing agent is immersed into the high melting point non-woven fabric under vacuum, and the thermoplastic polyurethane fiber composite is prepared by die setting. The preparation method has simple process and is suitable for automatic production. The invention also provides an application of the composite material. The thermoplastic polyurethane fiber composite is closely bonded between each layer and can be used as a protective film for wind turbine blades.