The environment where fluctuating pressure exists exerts obvious influences on the reliability of an aircraft. The study of the characteristics of fluctuating pressure has been recognized as an inevitable problem during design stage. This paper conducted a test based on a body of revolution with variable cross-sections to study the characteristics of surface fluctuating pressure. The study aims to a systematic investigation of the fluctuating pressure characteristics, including fluctuating pressure coefficient, sound pressure level, power spectrum density and spatial correlation coefficient, by using fluctuating pressure transducer and high speed schlieren system. A comparison with the results of Large-eddy simulation reveals that the experimental program can catch the characteristics of the fluctuating pressure correctly, including time-domain response, spatial correlation characteristics and frequency-domain characteristics, and at the same time, verifies the reliability of the test technique utilized in this paper for the complicated unsteady flow, which would provide feasible guidelines for measuring unsteady flow field.