The wet and dry trough for pigs is the latest breeding equipment that integrates the functions of automatic trough and drinking water. It is also the latest patented technology product. Both powder and granules can be discharged, and the feed can be digested and absorbed by the ingenious valve mode, as well as the automatic adjustment function. In addition, the drinking water equipment is added, so that pigs do not have to run back and forth between food and drinking water. Experiments show that the group growth rate of wet and dry troughs is obviously increased in the control group using wet and dry troughs as feeding tools and in the control group using cement troughs as feeding tools.