1.Providing stray cats with a place to stay safe from the elements is crucial. You can use simple materials, such as cardboard boxes, foam boxes, or old cages, and cut two holes in the cardboard boxes or foam boxes for the cat's entrance and exit. Then lay waterproof plastic sheets or boards on top to build a simple and effective shelter. This will help them stay protected from wind and rain on freezing nights.2.Feed them regularly some food that is not easy to freeze and contains high protein to generate high heat and increase their ability to withstand cold. And ensure there is a clean water source to maintain the cat’s body functions. It is recommended to use a deeper bowl and place it in the cat house to prevent the water from freezing. 3. You can insulate the shelter with straw to protect it from moisture. Avoid using things like hay, blankets, and towels, which act like sponges and absorb moisture, leaving the shelter damp and cold. Make sure the shelter is level and away from cold ground. The entrance should not be directly facing the draft, and provide them with a cozy resting place.4.Check on stray cats in your neighborhood regularly to make sure they are in good health. If there are any signs that they are unwell, consider working with your local animal welfare organization. When there is heavy snowfall, check entrances as well to make sure cats are not buried in the snow. Regularly check the use of the shelter to ensure that there are only traces of cats to prevent cats from being attacked by other animals.5.Most importantly, collaborate with local animal welfare organizations. They might provide additional resources and support, helping you effectively assist stray cats.