The utility model discloses a novel civil ship digital weather instrument, comprising a central processing unit which possesses serial communication interfaces, AD conversion interfaces, network card interfaces, bus interfaces and CAN interfaces. The central processing unit is attached to sensors through the serial communication interfaces or AD conversion interfaces, is attached to a big dipper satellite transmit-receive apparatus, a navigation data recorder, a GPS, a gyrocompass, a log and an electronic sea chart through the serial communication interfaces, is attached to a local area network through the network card interfaces, is attached to a keyboard and a display through the bus interfaces and is attached to CAN equipment through the CAN interfaces. According to the utility model, the central processing unit can be attached to a plurality of sensors of different types to perform meteorological monitoring, meanwhile possesses a function of communicating with a big dipper satellite and can monitor ship running states; SD and USB interfaces are possessed to realize data bulk storage; two CAN interfaces are possessed to perform communication with the CAN equipment.