Abstract: Henan Province was located in the North-South climate transition zone, and the studied of plants flora have exclusive geographical significance. Through investigation and statistics of natural legume forage species, in order to effectively exploit the regional forage legume resources, it was analyzed that the family and genera composition and the geographical elements and the feeding value analysis in Henan. The results showed that, there were 136 species of natural plants, which belonged to 41 genera in Henan. Among them, the main body form of the local legume forage flora was the dominant genera and the few genera, which the flora advantage phenomenon was very obvious. The two generas were 60.97% of the total generas number and 81.62% of the total species number. In the geographical elements of the plants flora, the temperate zone and the tropic with genera distributional type were in a dominant position, which expresses the adaptable characteristics between the distribution of flora and the climate zone. There was good value to leguminous forage in Henan, the exceptional and the moderate was 89.71% of the total species. The inferior and the poisonous was 10.29%. Some suggestions were put forward on their utilization and protection.