Abstract: This paper reviews the recent developments of energy storage and temperature regulating fibers and textiles both at home and abroad including the principle of temperature regulation and energy storage with phase change materials and the characteristics of various kinds phase change materials.The principles of choosing phase change materials for fibers are expatiated.The methods of compounding them with fiber or textiles,such as composite spinning,hollow fiber filling,textile coating and micro-encapsulation,are exemplified and compared.The future prospects for phase change materials in fibers or textiles are anticipated.