Standards for informatization in construction industry provides a solid foundation for regulating informatization in this field. In order to perfect the standard system of construction industry informatization, the design principles of the informatization standard system is explained firstly. Then two structure models for the system are established. Meanwhile, the corresponding relationships of different standards between the two models are also defined. Finally, the establishing process of the system for informatization standards is summarized. This standard system makes a guideline for the standardization of informatizaiton in construction industry.