The invention provides a CL composite concrete shear wall cast-in-place construction method. The CL composite concrete shear wall cast-in-place construction method comprises the following steps that (1) material lifting of CL grid frame plates is conducted; (2) the CL grid frame plates are placed on a temporary site adjacent to a construction site; (3) a plurality of positioning and adjusting assemblies are evenly arranged on the two side faces of the CL grid frame plates; (4) the CL grid frame plates provided with the positioning adjusting assemblies are conveyed to the wall body constructionsite through a trolley, the CL grid frame plates are sequentially hoisted into a CL grid frame plate mounting control line through a crane and butted; (5) a wall body formwork is mounted; and (6) self-compaction concrete is cast downward from the top of the wall body formwork. The CL composite concrete shear wall cast-in-place construction method is suitable for construction of CL composite concrete shear walls with different thicknesses, the level degree of the edge of the upper end of the wall body formwork on the inner wall of the wall body is ensured, the construction quality is improved,and the defects that external heat insulation and internal heat insulation durability of the external wall is insufficient are avoided; and building industry modernization and building product industrialization are achieved.