With the rapid expansion of the application field of the Internet of Things, how to keep the "door", "gate" and "card" in the scale development to ensure information security? Recently, at the 2022 Internet of Things Password Application Summit held in Wuxi City, Jiangsu Province, experts, leaders of relevant departments and enterprise practitioners from the domestic password application field deeply discussed the leading technologies, development trends and research points in the field of password application around the theme of "password ubiquitous integration of digital and real security symbiosis", Wuxi also signed a strategic cooperation agreement on the regional development of Internet of Things applications with the Internet of Things Professional Committee of the Chinese Cryptographic Society, and jointly established the Cryptographic Application Technology (Wuxi) Research Center. The security problems faced by the Internet of Things have become increasingly prominent. After more than ten years of development, the scale of China's Internet of Things industry has reached nearly 3 trillion yuan, and the number of related enterprises has exceeded 8000. In terms of the infrastructure layout of the Internet of Things, by the end of October 2022, China has built 2.25 million 5G base stations, more than 150 large-scale industrial Internet platforms, and 1.777 billion mobile Internet of Things end users, exceeding the scale of mobile phone users. At present, the Internet of Things has been widely used in many fields, such as manufacturing, transportation, construction, energy, finance, medical care and health, and home furnishing. It has constantly created new business types, new models, and new markets, established a good "digital base" for the economy and society, and strongly promoted the high-end manufacturing industry and the modernization of social governance. Relevant experts believe that a new round of scientific and technological revolution and industrial transformation in the world is developing in depth, new technologies, new products, new models and new needs of the Internet of Things are emerging constantly, and the evolution of the Internet of Things is accelerating. However, with the explosive growth of applications in the Internet of Vehicles, smart home, industrial control and other fields, hundreds of billions of devices will be connected to the network. The security threats faced by the Internet of Things are becoming increasingly prominent, and the Internet of Things password is getting more and more attention. Wang Xiaoyun, an academician of the CAS Member and chairman of the Chinese Cryptographic Society, introduced that in order to better study the Internet of Things cryptosystem, solve the problem of providing secure native technology for the Internet of Things cryptosystem, and provide continuous impetus for the continuous innovation of the Internet of Things cryptosystem, with the support of the National Cryptographic Administration and the Chinese Cryptographic Society, the Internet of Things Cryptography Professional Committee of the Chinese Cryptographic Society was established, focusing on the innovation of the Internet of Things cryptosystem, Gather relevant experts and scholars from universities, research institutes and enterprises to study the theory, technology and standards of Internet of Things (IoT) cryptography, so as to promote technological progress in the industry, promote the application of IoT cryptography, and build an innovation system of IoT cryptography technology that integrates industry, education, research, application, measurement and depth. The security of the Internet of Things cannot be separated from password guarantee and support In Hou Jianning, Deputy Director of the National Engineering Research Center for Cryptography, the security of the Internet of Things cannot be separated from the core guarantee and basic support of passwords. In the face of trusted access, controlled use, orderly operation and effective supervision of the Internet of Things, the deep integration of passwords and the Internet of Things has become a general trend. The relevant IOT industry demonstration zones should further promote the innovation and application of password technology in emerging areas such as the Internet of Animals, and output more successful experience and excellent programs for the country. "We should take the national strategy as our mission, grasp the core and key links of digital development, and make full use of Wuxi's industrial advantages in information technology, etc,