Abstract: Based on the analysis of biological characters, ecological characters and economic values of Henan main forage plants combined with the need of agriculture and animal husbandry in Henan province, This paper put forward to criterion of key forage plants as well as that of Henan forage plants planting divisions. Key forage plants consist of alfalfa, erect milkvetch, tall fescue, perennial ryegrass, crownvetch, white clover, red clover alsike clover, common orchardgrass, smooth brome; planting divisions with obviously optimal combinations of forage plants in Henan province cover the following 6 respects：（1）Northern plain forage planting division；（2）North-west mountain area forage planting division; （3）Middle-east low lying plain and nan-yang basin forage planting division; （4）Western mountain area forage planting division；（5）Huaihe river-south and Tongbai mountain area forage planting division；（6）Eastern plain forage planting division；These conclusions will provide necessary theoritical data or base for right choose of foeage plants as well as great development of grass industry in the future in Henan province.