Abstract: The wireless sensor network course urgently needs to reform the teaching method and improve the teaching effect，so as to meet the teaching needs of the Internet of things in applied undergraduate university in the new era.By analyzing the key points and difficulties of wireless sensor network course，it proposes introduction of inquiry link before class，uses the method of contrast explanation and simulation，with the aid of RBL and other specific reform measures to help students to enhance their technical promotion and meet the demand of the study