【Objective】This study aimed to study selenium bio-concentrating ability of major vegetables in Selenium-rich Region of Ledou,Qinghai Province.【Method】In 2010,135plants of six kinds of vegetables in the study area and 65soil samples were collected to determine their selenium contents,and vegetables selenium enrichment levels were evaluated based on the ecological landscape selenium limit value of food in China.【Result】The contents of selenium in vegetables were from 1.4μg/kg to 574.9μg/kg in Selenium-rich Re...