Aiming at the characteristics of high reliability, long service life, complex working environment, and single test stress factor of airborne fuel pump, a fuel pump degradation test platform under complex stress conditions was designed and built. And the influence of stress factors was analyzed. Firstly, through the analysis of the failure mechanism of the fuel pump, the electrical stress and mechanical vibration which affect bearing wear were selected as the main stress to study its performance degradation. Secondly, the degradation test platform and vibration test device of fuel pump were built based on the selected stress. And the pressure sensor and flow sensor were selected. The signal acquisition and control system was introduced, the fuel pump clamping device was designed and its dynamic performance was analyzed. Finally, the experimental scheme was designed based on the orthogonal experimental idea, and the test results were analyzed through range analysis and variance analysis. The number of tests was reduced by 2 / 3. It was concluded that voltage has more significant influence on the reliability of fuel pump and the confidence level was up to 99% .