Abstract: In recent years, sisal fiber has been widely used as reinforcement of polymer composites due to its renewability, cost effectiveness, low density, high specific strength and modulus. This paper presents a summary of the recent developments of sisal reinforced composites. Structure-property relationships and surface modification techniques of the fiber as well as influencing factors of mechanical performance of the composites are reviewed. It is believed that a right combination of fabrication techniques so far developed in accordance with different applications and target user groups should be found out.