Abstract: The plant cuticular covers aerial plant organs, forms a layer between the plant and the environment, and plays an important role in protecting aerial organs from damage caused by biotic and abiotic stresses. The structure, composition, biosynthesis of plant cuticular and the penetrability of cuticular as well as the investigation concerning the relationship between the cuticular and the plant drought-resistance are reviewed .We also discussed the problems existing in the cuticular research.

Key words: cuticular, penetrability, drought-resistance, biosynthesis