This research investigated on the medical recorder manpower relation by before / after medical record computerization for the object of 51 hospitals in 1998 year. Judging from the situation before / after computerization shown on this investigation, the number of personnels was more increased since computer work than manual work, and the medical recorder present conditions by years show that they have been gradually increasing. This is considered why affairs diversely change according to computerization, the auxiliary recorder present conditions shows the reduction of 98 year in comparison with 94 year. This is regarded that personnels were reduced by facilities like existing transporting pipes. Accordingly, vast data are produced and utilized in the medical record department(room) too, therefore information will be quickly / correctly dealt for this. The times invested for simple affairs will be easily diminished by making existing simple affairs be computerized, and so personnels will have to be invested to earnestly / diversely utilize vast information not to reduce personnels in proportion to diminished times.