An examination of avalable data relevant to several problems in the Korean family planning program led us to the following conclusions: 1. The high incidence of discontinuance in the use of IUD appears to be one of the foremost problems which effectiveness of the family planning program in Korea. Thus, the development of technologies and program strategies to decrease the discontinuance rate is badly needed to increase effectiveness and efficiency of the program. 2. The monthly supply of oral pill was found inadequate in terms of timing at the end and beginning of the year. 3. The frequency of home visiting showed discrepancy between service statistics and survey result. Evidences indicate that the latter figure is more correct. Program strategies should be developed to make home visiting activities more effective. 4. It was observed that the unit cost of the family planning program was increased fairly rapidly. It calls for the necessity of increasing cost efficiency of the program.