This is an open access book. ICIDC 2024 is to bring together innovative academics and industrial experts in the field of Information Economy, Data Modeling and Cloud Computing research to a common forum. The primary goal of the conference is to promote research and developmental activities in Information Economy, Data Modeling and Cloud Computing research and another goal is to promote scientific information interchange between researchers, developers, engineers, students, and practitioners working all around the world. The conference will be held every year to make it an ideal platform for people to share views and experiences in Information Economy, Data Modeling and Cloud Computing research and related areas. 2024 3rd International Conference on Information Economy, Data Modeling and Cloud Computing (ICIDC 2024) is scheduled to be held in Dalian, China from June 21-23, 2024. Big data provides rich resources for modeling in the economic field. Through data modeling, we can obtain the dynamic change trend of various indicator data, analyze the relationship between elements in the process of related economic activities, and can reveal the relationship that is difficult to show by traditional technology; Therefore, how to use big data information to model and study the development trend of economic operation plan is of great significance. This conference will continue to focus on the application of big data in the economic field, and conduct more in-depth research in combination with cloud computing.