The invention is a simplified model on kidney rejection in animals and its setting approach. The method involves isolating dendritic cells from male mice and isolating T cells from female mice and then using the naive T cells in vitro to culture concurrently with male dendritic cells. Those activated T cells from female origin were injected into renal cortex in male mice for the purpose of attacking renal cortex. The animal model simulates the renal transplant rejection method to enable effective induction of renal transplant immune reaction.