Locomotive operating data recording device

One kind of locomotive operating data recording apparatus, comprising: a master module for realizing the locomotive data acquisition control logic, and data logging, and communication features dump; communication assembly, comprising a RS422 / 485 serial interface circuit, RS232 communication circuit debugging line, Ethernet interface, USB interface circuit; a signal acquisition and output assembly 16 includes a digital acquisition circuit, two voltage analog acquisition circuit, two current-mode analog acquisition circuit, two signal acquisition circuit frequency, one analog four digital output circuit and an output circuit; drive a lamp display component for displaying the operating state data logger; power supply assembly for supplying power to each of the circuits or components. The present invention has a simple and compact structure, low cost, easy to operate, can significantly improve product reliability, flexibility and other properties, can be configured to expand the scope of its advantages.