Abstract: In this paper Plateau Tank Facility(PTF)is used to investigate experimentally the vibrati on properties of axisymmetric viscous liquid bridges under simulated microgravity enyironment.Experimental tests are undertaken circularly for different bridge slenderness,different bridge positions,different vibration frequences and different bond numbers.The changes of bridge interface vibration amplitude versus vibration frequence are recorded in detail.The analysis of these data and spectrograms show that:(1)Bridge resonance frequences are moving towards the lower value of frequence with the increasing of the bridge slenderness.(2)Experimental relati ons between them are inyerse ratio curve.