As an important part of the implementation of the digital rural revitalization strategy, the construction of agricultural Internet of Things is in full swing in Zhejiang Province. By doing field research and collecting data, this paper deeply studies the typical cases of the construction of the agricultural Internet of Things in Hangzhou, Jiaxing and Taizhou. Then this paper sums up the valuable experience of these cities in the construction of agricultural Internet of Things, and comes up with three problems in the construction process, which aims at enlightening the post-development city of agricultural Internet of Things in Zhejiang Province.