First of all, information science has produced important enlightenment to communication mode and some communication theories. As early as the early days of communication theory, Shannon and Weaver, the founders of information theory, put forward the linear model of general communication system for the first time in Steven John Jr (1999). Subsequently, communication scholars introduced the concept of "feedback" put forward by Weiner, the founder of cybernetics (Werner Sevelin, James Tankard, Jr., 2000), thus making the communication mode transition from linear one-way flow to nonlinear two-way backflow. In this way, there were many ways of communication later. Communication has also introduced some highly abstract and universal important concepts from information science, such as information, entropy, information quantity, control, feedback and system.

Second, information science has important enlightenment to communication science in research methods. Information science is a group of disciplines. With the help of computers and modern mathematical tools, they put forward effective quantitative means and scientific methods to solve complex system problems. Field investigation and content analysis used in communication are closely related to information science.

Thirdly, information science has a far-reaching impact on the theoretical framework of communication. Information science has a strong methodological nature. Since the 1960s, communication scholars in the United States and Western Europe began to absorb the achievements of information science, especially using the idea of "the whole is greater than the sum of its isolated parts" in system theory to study the communication process and communication system.