High energy consumption and serious environmental pollution are the two main disadvantages for traditional synthetic fibers. Therefore

it is of great application prospect to develop new kinds of biodegradable fibers to prepare composite materials. Hemp fiber is a kind of natural cellulose fiber with high specific strength and modulus which is applied in polymer matrix composites have attracted a wide spread attention owing to its excellent advantages such as light weight

low price

environmental protection and renewability. The reinforced composites can be obtained via the addition of surface modified hemp fiber into polymer matrix. Thus

it is promising for hemp fiber to become a new reinforcement and replace the traditional synthetic fibers. In this paper

the structure and properties of hemp fiber and its surface modification methods were introduced. The latest research trends on the properties of hemp fiber composites are reviewed

and the further research prospects of hemp fiber composites are also discussed.