GS-VTON is a 3D virtual fitting technology that utilizes Gaussian scattering (3DGS) as a 3D representation, enabling knowledge transfer from 2D virtual fitting models to 3D space while enhancing cross-view consistency. This technology integrates personalized information into pre-trained 2D virtual fitting models through low-rank adaptation (LoRA). Additionally, it introduces a character-aware 3DGS editing framework to maintain consistent cross-view appearances and high-quality 3D geometric structures during the editing process. GS-VTON demonstrates its high fidelity and advanced editing capabilities in 3D virtual fittings through extensive experiments and comparative analyses with existing methods, proving its effectiveness in this domain.