To provide a mesh sheet for civil engineering, requiring no post processing for applying a vinyl chloride resin or the like, having excellent lightweight and workability, functions required for the mesh sheet for civil engineering and excellent weathering resistance.

This mesh sheet is woven/knitted by using a sheath-core conjugate fiber yarn having the core comprising a polyester polymer and the sheath comprising another polyester polymer having a lower melting point than that of the core polyester polymer and has ≥70% strength retention after 1, 000 h irradiation by a sunshine carbon arc weatherometer.