A comparative experiment was carried out in Chunchon and Taekwanryong, Kangwondo to test the adaptability of pasture plants introduced from New Zealand. The New Zealand introduced pasture plants tested in this experiment were orchargass-Apanui(O-A), perennial ryegrass-Ruanui(P-R), Tama ryegrass(Ta), timothy-Kahu(Ti-K), white clover-Huia(W-H), alsike clover(As), red clover-Hamau(R-H) and alfalfa-Wairau(Af-W); besides those plants U.S.A. introduced orchardgrass-Potomac(O-P) and Ladino clover(L), Canada introduced perennial ryegrass-Norlea(P-N) and Australia introduced tall fescue-Demeter (Tf-D) were included in this experiment to compare with the New Zealand introduced pasture plants. The Chunchon experimental field(94m above sea level) was sown on the 8th of May 1977 and the Taekwanryong experimental field(820m above sea level) on the 10th of 1May 1977, and the experiment was carried on until April 1978. The results obtained were summarized as follows: 1. O-A and P-R were slower in early stage growth, lower in the year total yield of dry matter and poorer in wintering record than O-P and P-N respectively. 2. O-A and P-R seemed to unsuitable varieties for the Kangwon area. 3. Ta, which proved to be annual, was thought to be utilized sooner after the sowing because its early stage growth was extremely vigorous. 4. Ta demonstrated abundant production marking 10.99 t/㏊ in the year total yield of dry matter in the Taekwanryong experimental field. Nevertheless, Ta`s summering record was inferior in the Chunchon experimental field. 5. In the both experimental fields of Chunchon and Taekwanryong, Ti-K showed a poor record in summering and presented a low year total yield of dry matter but it was found to be outstanding in winter survival. 6. W-H was regarded to have the strongest winter hardiness among the legume plots, yet it marked rather a lower dry matter yield. 7. It is presumed that R-H will find no difficulty in wintering even in the alpine region but will fall into trouble in summering in the lowlands. 8. Af-W made poor growth in both the Chunchon and Taekwanryong experimental field. 9. Though L recorded the highest year total yield of dry matter among the legume plots, most of L were winterkilled in the Taekwanryong experimental field. 10. O-P and Tf-D presented comparatively good record in summering and wintering, and Tf-D showed the highest year total yield of dry matter in the Chunchon experimental field presenting 6.01 t/㏊. 11. P-N and As revealed comparatively strong winter hardness even in the Taekwanryong experimental field. 12. In the year total yield of dry matter the Taekwanryong experimental field was larger than the Chunchon experimental field by 79.1% in the grasses and by 13.8% in the legumes.