In the information weapon equipments test and combat in the sea, electronic information equipments such as radar will be affected by atmospheric duct. The influence of the atmospheric duct on the sea test and combat is given. The present situation of the atmospheric duct monitoring test in Bohai zone is analyzed. The atmospheric duct monitoring test method in Bohai zone is studied. According to the test situation and resources advantages, two kinds of tests such as atmospheric duct routine test and atmospheric duct special test are proposed. The research on the atmospheric duct monitoring test in Bohai zone will provide the theory sustainment for understanding the complex meteorological environment and constructing the test environment close to combat.