Abstract:The endophytic bacteria in Musa nana collected from Zhangzhou in Fujian Province were isolated and identified by plate method. The results showed that there were 24 microbial species, belonging to 21 genera, isolated from Musa health and infected plants. Nine endophytic bacteria, belonging to 9 genera were contained from health plant, in which there were 6, 2 and 8 species isolated from root, stem and leaf, respectively. Seventeen endophytic bacteria, belonging to 15 genera were contained from infected plant, in which there were 11, 3 and 6 species isolated from stem, root and leaf, respectively. The content of endophytic bacteria in root of health plant was the highest, reached up to 5.195×106 cfu g-1, while that in lower leaves was the lowest with 30 cfu g-1. The content of endophytic bacteria in stem of infected plant was significant higher than those in other parts, accounting for 1.05×107 cfu g-1. It suggested that endophytic bacterial species and content in Musa had diversity under different growth states.