Osamu Hatake amaKoi Matsueak .i", Tatsuo Usui'3, Hideo Katano*4 Shinji Kawamoto , Tamotsu Konishi 6 , Yasuo Shimizu 3, Yujiro TazawaR7 Yu Nozawa*8 , Takezo Miyamoto* '. Hirokuni Morikawa*9 Synopsis : Automation and robotics in construction fields are being undertaken in views ofshortage and aging of construction workers and skilled workers, improvement of working environment and maintenance of good conditions free from hard work and danger. In-depth examination has been carried out at almost all the sites and surveyed as to performance, operability and working environments to secure safety control, prior to automation or use of robots in dam construction which combines manpower and machines . On the other hand , there are worries about safety on construction sites . Focusing on dam concrete placement , this paper reports on the present condition of dam construction sites from a viewpoint of safe operation, that is, `Coordination between Man and Machine" This paper also describes the direction of functions and element technologies required in automation and development of robotics, makes suggestions as to the future implementation systems and examines issues ofpromotion and support of automation in the institutional context.