The invention discloses a synchronous serial signal collection control device based on the Gigabit Ethernet, and the device comprises an SSI signal collection device, a main control unit, a Gigabit Ethernet communication device, and an upper computer; The Gigabit Ethernet communication device achieves the connection with the SSI signal collection device through the main control unit. The SSI signal collection device is directly connected with an external sensor, and collects the original data of the sensor. The upper computer and the Gigabit Ethernet communication device employ a UDP for datatransmission, and a network line which supports the Gigabit transmission rate is required for the hardware connection. The device employs the Gigabit Ethernet communication interface. Compared with aconventional PCI and a USB bus, the device greatly increases the transmission rate, so the device can support a peripheral sensor with the larger number of collection channels and higher collection frequency. Meanwhile, the Ethernet interface is convenient to connect, and the device is longer in communication distance. The device also can be connected with the Ethernet switch, a personal PC and anindustrial control computer, is flexible in networking, is reliable in transmission, and is low in cost.