The Internet of things technology is increasingly widely used in the cold chain logistics industry. This paper focuses on the application principle and application direction of the Internet of things technology in the cold chain logistics industry. Through this paper, engineering supervision practitioners can understand the basic knowledge of the above system in detail, grasp the key points of supervision, so as to make the supervision work more efficient, effectively expand the occupation scope of the engineering supervision industry, and make the supervision industry enter the intelligent engineering field represented by the Internet of things from the traditional engineering construction field.