Internet of Things (IOT) is an extension and expansion of the internet development. The ultimate goal of IOT system is to realize the exchange and communication between human and thing as well as thing to thing. With the constant development of IOT, the intellectual degree of the future IOT would be higher and higher, the application filed would be getting extensive too. IOT plays a very important promoting effect on the logistic service system, corporation production and operation management, the production quality control of the online shopping by consumers and other aspects of the electronic commerce. IOT E-commerce provides extreme convenience to people’s work and life, but its information safety still has some restriction. The character of Analytic Hierarchy Process (AHP) is to divide the complicated problem into simple combinations of multiple hierarchies and factors, and group each factor in two for comparison and calculation, according to the calculated result to make judgment and make choice. This article, based on AHP model, establishes information security evaluation model of IOT electronic commerce, evaluates on the five physical measures to protect electronic label by theory analysis on algorithm and AHP model, which has certain referential value to the IOT E-commerce information security evaluation work.