抄録
Since the first visit of Japanese delegation of physicists in 1957, the communication of the scientists in both countries started. Then mutual visits and collaborative efforts of Cosmic-ray studies and Space sciences have been realized. One of the successful collaborative achievements is the study of the high-energy cosmic-ray phenomena at high mountain laboratories in Tibet, which has been operated since 1980. As for the space science, the collaborative scientific ballooning works, launching the balloons at Kagoshima Space Center, ISAS, fly over the East-China sea, recovering the payloads in the west of Shanghai, were successfully performed during 1986-88. The Institutions including Purple mountain observatory, Shanghai astronomical observatory Space Science and Technology Center in China, ISAS and the several Universities in Japan carried out the observations and analyses. Exchange program of the scientists are preceded, and it stimulates the studies of the respective fields. For the advance of the space science, it becomes possible to discuss the collaborative satellite observations. For this, I emphasize that it is most effective to promote together collaborative scientific ballooning works of long duration flights in China, not only for the scientific results of balloon observations but also for giving more experiences and chances of observations to the space scientists. It will help to increase the number of excellent young scientists, which is indispensable to develop the field of space science with future satellites and space probes.
