A dynamic simulation image rapid generation method for a substation secondary circuit includes the steps of Step 1, first converting a CAD (Computer Aided Design) drawing into a simulation sheet format; Step 2, matching a corresponding dynamic element model according to the types of elements, analyzing and comparing parameters of primitives and primitive combinations, searching all the drawings to find figures identical or similar to specified primitives and primitive combinations, replacing all the specified primitives and primitive combinations with a specified dynamic secondary circuit element model, capturing connecting wire ends near element ends, and maintaining the connection relation on the original drawing; Step 3, determining the connection relation and assigning a unique number to a circuit node according to information t of he element ends and connecting wires on a simulation drawing, connecting elements on different drawings together through the unique number to form a complete secondary circuit. The dynamic simulation image rapid generation method for the substation secondary circuit greatly reduces the generation time of the simulation drawing by using an automatic matching batch processing mode in steps of drawing production, dynamic element attribute definition and the like.