Method and process of the experiments of discovering electromagnetic waves by Hertz

This paper makes a detailed investigation of the experiments of discovering electromagnetic waves by Hertz, according to the Hertz's collected papers, laboratory notes, diaries, letters and other original literature. It is tried to reappear really the historical process of the great discovery. It is argued that the process of Hertz's discovering electromagnetic waves consists of a series of importance experiments, not any single experiment. Furthermore, it points out that although Hertz did not know the practical value of his discovery, but the results of his experiment research objectively play an important role in the development of radio technology.