The utility model relates to a liquid goods automated system particularly, relates to a liquid goods automatic control device and LNG filling ship of LNG filling ship. The device mainly includes: the setting is at power supply unit, operating panel and the industrial computer of goods accuse room, power supply unit, operating panel, industrial computer connect gradually, still include the liquid goods control module with liquid goods headtotail, liquid goods control module fills the dress controller, promptly cuts off high -order alarm device of controller, storage tank and more than one measurement element including what connect gradually, fill the dress controller, promptly cut off the high -order alarm device of controller, storage tank and measurement element through two redundant CAN nets with the industrial computer is connected with full ship monitoring alarm, full ship monitoring alarm sets up in the driver's cabin, fill the dress controller, promptly cut off the high -order alarm device of controller and storage tank and pass through the rigid line and connect operating panel. The problem that marine LNG filling process is automatic and accuracy nature is low has effectively been solved.