Abstract: Rhynchocoris humeralis is a popular pest in Citrus reticulata Blanco in Jiujiang of Jiangxi Province, which could occur one generation a year, and the adult and nymph of Rhynchocoris humeralis usually suck the juice from fruits and tender shoots. The morphological character was described, biological characteristics and occurrence regularity of Rhynchocoris humeralis were systematically investigated, and the comprehensive control countermeasures were put forward based on its living habits.