Polypropylene woven geotextile(PWG), one of the important geosynthetics, has been widely used as materials of reinforcement and separation in the civil engineering field. But there have been no systematic reports about the physical property and structural factor of PWG in the textile engineering aspect. In this study, reproducibility of PWG production and influence of fabric design factor on the tensile property were evaluated. The results indicated that development of high denier weft film yarn, soft and multi-layer structure, was essential to produce high strength PWG (>10t/m) and to ensure good reproducibility o the tensile properties of PWG. And in order to produce PWG satisfying the demanded tensile property, selection of suitable yarn denier and threads per inch was necessary. Tensile strength of PWG decreased on exposure to daylight, and especially exposure condition had a fatal effect on the tensile strength of light weight PWG.