The development and use of broadcasting satellites in Japan are discussed in this paper. The paper describes the medium-scale experimental broadcasting satellite, YURI, launched by NASA in 1978, and reports that experiments with YURI in the areas of basic technologies in the broadcasting satellite system, experiments on satellite control technologies and operational control techniques for the satellite broadcasting system, and experiments of reception of radio waves from a broadcasting satellite have shown favorable results and that practical application of broadcasting satellites are technically feasible within the foreseeable future. It recommends to the Space Activities Commission of Japan that an operational broadcasting satellite be launched in 1983, prior to the planned launchings of space platforms in 1985 and 1990. The paper notes that space development in Japan has now reached a turning point that will lead from the initial phase of ground work consolidation to a second phase of practical application, working under the auspices of the Telecommunications Satellite Corporation of Japan, recently established by the Japanese Diet. Objections of commercial broadcasters who fear disruption of regional broadcasting by broadcasting satellites are also presented. (MKM)