The object of this experiment was to suggest the suitable cutting frequency and cutting height for orchardgrass (0G)-red clover(RC) mixtures under the intensive system of short-term pasture utilization. The fields trials were conducted over 3-year period(1991-1993) to evaluate dry matter yield, botanical composition, chemical composition and CP, DDM yield on the cutting frequency (30, 40 and 50 days) and cutting height(5, 7 and 9cm) With decreasing the cutting frequency, the DM yield of OG in the OG-RC mixtures was significantly increased(P<O.Ol), however, that of RC was remarkably decreased(P<0.05). CP content and DMD were risen by increasing the cutting frequency. The total herbage DM, CP and DDM yields were the highest in both 40day (5th cutting) and 50day(4th cutting) intervals. Therefore, it seemed to be desirable to harvest herbage between 40day and 50day cutting intervals in the OG-RC mixtures. With incresing the cutting height, the DM yield of RC in the OG-RC mixtures was increased (P<0.05), whereas that of OG was not affected by cutting height. There was no significant difference among cutting height levels in the DM yield of total herbage. On the othehand, the CP content, DMD, and DDM yield at 7-9cm cutting height were higher than those of 5cm cutting height (P<0.05), and so, it seemed to be desirable to harvest herbage between 7-9cm cutting heights in the OG-RC mixtures.