Animal welfare has been paid more and more attention by the captive and the public. Minimizing stress for captive individuals is an important strategy of management. (Castellote&Fossa ,2006)Stress and associated health problems are a recognized concern in captive cetaceans (Caldwell &Caldwell, 1968; Dierauf, 1990; Sweeney, 1990)Managing the captive environment to minimize stress and optimize well-being for the animals requires not only an understanding of the environmental factors that are stressful, but also the development of appropriate measures forregular monitoring (Owen et al., 2004).Acoustic activities are like human speech communication. Through the evaluation of acoustic activities, we can understand the emotional changes of animals, so as to improve the welfare of captive animals