1. Use the rat-sticking board: spread the rat-sticking board in the place where rats often appear according to the operation method, and press the edge of the rat-sticking board with a heavy object until the rats bite. 2. Use a rat cage: put the food in the rat cage, and then put the rat cage in the place where rats often appear, waiting for the rats to bite. 3. Use a mousetrap: put the mousetrap in a place where rats often appear and wait for the rats to bite, but the mousetrap is powerful, so it is best not to put it in a crowded place to avoid accidental injury. 4. Use rat poison: Rat poison is highly toxic, so it is best to put it in the corner to avoid other pets eating it by mistake. 5. Cats: Cats are the natural enemies of mice. Keeping one can prevent mice.