[en] The radiation monitoring system of Osaka Univ. Laboratory of Nuclear Studies which has Van De Graaff, Cyclotron and RI Laboratories, was reported. The system has a counting one which constantly monitors the spatial dose rate, and the added dose of gamma rays and neutron beams with an alarm system. With regard to the counting system, the BF³ detector (for neutron beams, 8 posts), heat fluorescence radiometer (for gamma rays, 14 posts) and film badge (for gamma rays and neutron beams, 14 posts) were under current use. Diagrams of the counting and allarming circuits were presented. Conversion and correction from measurement values were explained. (Chiba, N.)