After a long period of service in the marine environment of a naval aviation equipment, the aluminum alloy shell would connect with the naval brass rail, thus leading to galvanic corrosion. Effects of different conditions on the galvanic corrosion are studied based on the NernstPlank equation and the boundary element method. The geometry of structures, the polarization data of materials and the property of electrolytes are regarded as the input data and galvanic models are established for the bare electrode. The laboratory verification method for the validity and reliability of the model is explored here. The result shows that, the selfcorrosion potential of ZL115T5 aluminum alloy is lower than that of C41500 navy brass under the same condition, which plays the role of anode in galvanic corrosion. With the increase of electrolyte concentration and film thickness, the galvanic corrosion will be more intense. The test value and simulation value of the galvanic current and surface potential on the bare electrode agree well with each other, indicating that the corrosion boundary element model is effective and reliable.