In this study, numerical analysis of mechanical properties of textile composites was performed using GMCsFEM. Three-dimensional woven composites can suppress delamination, which is a major issue of CFRP, by weaving fiber bundles in the through-the-thickness direction. However, in finite element analysis of textile composites, the complex fiber shape causes a high cost of time required for element division and a high cost of calculation cost due to a large number of elements. So far, an attempt has been made to apply mesh superposition method to analyzing textile composites that allow numerical analysis by dividing the resin and fiber bundles meshes independently and overlaying them. However, there is an issue that accurate strain cannot be obtained around the material interface. Therefore, in this research, we constructed a new method combining the mesh superposition method with Generalized Mathod of Cells (GMC) that can be considered micro inhomogeneities, applied it to textile composites, and verified its validity.