In modern China, the level of social and economic development has been greatly improved, and the development of open economy has become more and more frequent.The development of port trade has put forward higher requirements for the construction of corresponding port infrastructure.In particular, the application of port machinery and equipment plays an important role in the operation of economic activities.Crane is the main equipment of port handling, the guarantee of its installation quality is particularly important.Based on this, this paper studies the installation of the horizontal wheel of portal crane.First, it analyzes the basic operation of the installation, and then discusses and studies some problems existing in the installation.