Lean management method for construction drawings of power transmission and transformation project

The invention relates to a power transmission and transformation project construction drawing lean management method, which comprises the following steps: S1, dividing a power transmission and transformation project into a power transformation project and a line project, collecting corresponding drawing data, and respectively establishing a power transformation project model and a line project model; s2, establishing a screening and scoring model of a parameterized transformer substation construction drawing "fixed module + selectable module"; s3, a construction drawing fixing module in the step S2 comprises a complete fixing module and a partial fixing module, the complete fixing module is a module which can completely determine a design scheme and can calculate the engineering quantity according to the construction drawing, and the partial fixing module is a module which can determine the design scheme but cannot completely determine the engineering quantity; and S4, the construction drawing selectable modu