This paper presents a hierarchical experimental teaching method of introduction to internet of things, which arranges experi-mental projects according to progressive teaching methods of basic experiment, comprehensive experiment and systematic experiment by taking arousing students'' interest as the starting point, uses the limited resources to realize hierarchy teaching, cultivates students''practical ability and innovation ability, helps students understand the system of internet of things, establishes a thinking model of inter-net of things and lays a foundation for the subsequent courses.