Optimum pasture management during the summer season is an important factor to maintain good regrowth and persistence of pasture. The field experiment was carried out to investigate the effects of cutting management on growth and reserve carbohydrates in stubble, and on dry matter yield of orchardgrass dominated pasture during the mid-summer season. Three different cutting times(July 15, 25 and August 5) as a main plot and three cutting heights(3. 6 and IOcm) as a sub plot were disigned with three replications. The experiment was done at pasture of Changsung Agricultural High School in 1988. The results obtained were summarized as follows: 1.Temperature of soil surface and underground in the cutting of July 15 and July 25 was not showed significantly different, because of low intensity of radiation with a run of wet weather, and that of August 5 cutting tcnds to be lowed In high cutting height during the mid-summer season. 2. Amount of soil moisture against cutting height showcd that high cutting had a low content. 3. Growth rate against regrowth of plant height. leaf length and leaf area showed to be rast in high cutting. 4. Rapid recovery period of carbohydrate content after cutting and large amount of carbohydrate accumulation were showed in the cutting of July 15 and 25 compared with August 5 cutting in the rcserve carbohydrate content against cutting of time and height during the mid-summer season. 5. Dry mattcr yield of the 4th and 5th cutting showed to be remarkable in July 15 cutting compared to those of July 25 and August 5. From the above results, it is suggested that the lOcm cutting height during the mid-summer season in the most effective for good regrowth, reserve carbohydrates and dry matter yield of orchardgrass.