The invention discloses a binocular vision area target depth information extraction and cross section analysis system and method. The system comprises a left bracket, a right bracket, a first driver, a second driver, a third driver, a fourth driver, a fifth driver, a control panel, a first step motor, a second step motor, a third step motor, a fourth step motor, a fifth step motor, a rotating plate, a first transmission gear set, a second transmission gear set, a third transmission gear set, a left rotating shaft, a right rotating shaft, a main shaft electronic compass, a left electronic compass, a right electronic compass, a left camera bracket, a right camera bracket, a left camera, a right camera, a left electronic gyroscope, a right electronic gyroscope, a bracket plate, a bracket plate, a main shaft and a bottom plate, wherein the third transmission gear set consists of a first gear and a second gear; the first transmission gear set consists of a third gear and a fourth gear; the second transmission gear set consists of a fifth gear and a sixth gear. The binocular vision area target depth information extraction and cross section analysis system and method can be used for obtaining the cross section information on preset tracks in areas to be detected.