Abstract: A general analysis approach to multi-object scattering systems of arbitrarystructure is presented. Through the system scattering equation (SSE), the multi-object problems are first transformed into a series of single-object problems. Then we solve the single-object problems, one-object by one-object, TO yield the unknown coefficients of SSE and finally obtain the complete solution of original multi-object problems. As to the solutions of single-object problems, we use the finite element method for complex scatterers, or simply the moment method for conducting scatterers. We will confine ourself in two-dimensional cases, and show some calculation examples of 3-object conducting cylinder scatterers coated with dieletric material for demonstration.