This paper mainly uses GB/T5009.3-2003 and infrared drying method to test the moisture content of three kinds of solid food samples respectively. From the experimental research results, it is found that the infrared drying method effectively reduces the test practice, and the operation is very simple and fast. After passing the obvious test, there is no obvious difference between the infrared method test results and the national standard (105-/+) ℃, (3+1) h direct drying method.