The dynamic behaviors of the clampedclamped pipe conveying fluid under the harmonic excitation and pulsating flow are investigated by using the experimental method. The vibration experimental equipment of the clampedclamped pipe conveying fluid is designed and made. In order to ensure that the experimental results are accurate and reliable, three pipes of different materials are selected for the experiments. The influences of the fluid velocity, excitation amplitude and pulsating flow frequency on the vibration characteristics of the clampedclamped pipe conveying fluid are studied. The results show that the fluid velocity and excitation amplitude have a significant impact on the firstorder resonant characteristics and vibration amplitude of the clampedclamped pipe conveying fluid. There are the chaotic vibrations in the clampedclamped pipe conveying fluid under pulsating flow. The average amplitude of the pipes decreases with the increase of the pulsation frequency.