The research is about the design of fuel cell measurement & control system based on the graphical and virtual instrument technology. The hardware platform of this system is mainly based on NI Company's data acquisition products and the software design is based on the development environment of LabView (Laboratory Virtual Instrument Engineering Workbench). To guarantee the data transmission's accuracy and immediacy, CAN bus and Ethernet are used for the communication between the control modules and the host computer. Through the test, this system meets the requirements of the Proton Exchange Membrane Fuel Cell's measurement & control. And this system has many advantages, such as friendly Human-Machine Interaction, stability, reliability and anti-electromagnetic interference.