The rapid development of science and technology and further deepening of information technology. The Intemet of things,known as the third wave of information in the world,is gradually infiltrating into every place of our life, small to our daily life,as far as aerospace industry,and the Intemet of things play a vital role. The emergence of the Intemet of things has truly realized the eomnmnieation between things and things,and the transmission of information has reached each other. Delivery. However,the errent phase of the Internet of things is still in the development stage, all aspects are still not fully mature,still exist such problems,this article on the Intemet security problems and Countermeasures to do related research,hoping to provide some reference for the relevant personnel.