The invention provides an airborne fuel system remote interface unit, and aims to provide a remote interface unit that the hardware utilization is high, the management is unitive, the maintenance is convenient, the interference with transmission is small, the fault-tolerant capability and fault detect capability are high, the complexity of cables can be lowered, and information is transmitted through a bus network. The remote interface unit provided by the invention is implemented by the following technical scheme: a temperature sensor converting interface, a pressure sensor converting interface, a density sensor converting interface are connected with a CPU (Central Processing Unit) daughter card respectively by a moving filter circuit, an inverter and a reference voltage circuit through a multiplexer switch circuit, a capacitive sensor converting interface, a consumption sensor converting interface, a mass flowmeter converting interface, a discrete input signal converting interface are connected with the CPU daughter card respectively by a digital electric bridge circuit, a converting module, a signal processing circuit, and an isolation conversion circuit; the CPU daughter card nearby collects various control signals and sensor signals of a fuel system through the various interfaces, and uploads the control signals and sensor signals to a supervisory computer.