The "walking mechanism" of bacterial cells and the role of their legs and falagellae in their transfer or walking is the subject of this article. Additionally, the structure of bacterial cells and the role of their own thermal diffusion field, electric and magnetic fields constructed by the geometric Dirichlet boundary conditions in their transfer or walking mechanism have been thoroughly discussed. Experimental study and theoretical analysis show that the bacterial cell colony is negatively charged due to the presence of free electrons which produce an electric field flowing radially outward from the colony and a circulating magnetic field surrounding the colony. Bacterial cells can move radially outward and cross foodless spaces through the force mechanism of the bacterial colony's electric fields in addition to the swimming and crawling motion of the bacteria's legs and flagella.