Twisted structures exisit widely in natural living bodies and inanimate substances

and through a large number of studies

it has been found that it is widely present precisely because such twisted structures help to improve the properties of materials

which in turn can achieve rich biological functions. By mimicing the natural twist structures

researchers have developed a number of twisted fibers for a variety of applications. During the twisting process

the fiber will twist and deform to generate a twisting moment

and the internal structure of the fiber is tightly hugged and becomes tighter while being helical-oriented. As a resuct of torsion

the internal structural of the fiber changes adding some very unique and outstanding properties in terms of mechanical properties

thermal effects and electrical properties. Therefore

twisted fibers have attracted extensive attention from researchers

and have been applied in multiple fields. This review paper mainly introduces the preparation mechanism of twisted fibers. The latest research progress of twisted fibers in the fields of artificial muscle

refrigeration and power generation is reviewed

and the further research development and application prospect of twisted fibers are prospected.