The invention discloses a gunnery training stability evaluation device based on analysis of brain wave signals and balance sensors, which includes a brain wave signal analyzing unit, a shake monitoring unit, a wireless communication module and an information recording device, wherein the brain wave signal analyzing unit and the shake monitoring unit are connected with the information recording device respectively through the wireless communication module; the brain wave signal analyzing unit includes an electroencephalogram signal acquiring electrode, an electroencephalogram signal preprocessing module, a high resolution A/D (analog to digital) converter and a signal processing module that are all connected in sequence; and moreover, the shake monitoring unit includes a forefinger shake monitoring sensor, a middle finger shake monitoring sensor, a gun barrelfront shake monitoring sensor, a trigger micro-pressure monitoring sensor and a singlechip. With adoption of the gunnery training stability evaluation device, a coach can clearly analyze influences on shooting results by brain wave change data, finger shake parameters, finger triggering pressure parameters of a shooter, so as to regulate shooting behaviors of the shooter in a more targeted manner and achieve the purpose of improving the score rapidly.