Objective This paper analyze the locomotion property of statocyst of marine mollusk Clione limacine. Method We used here are WLC model to study electric spike of neural system and to simulate Liapunov index of the spike neuron. Result The results show the Liapunov index of the neural electric spike appears negative in general situation and appears positive in special external stimulus. Conclusion The locomotion of statocyst of marine mollusk Clione limacine have different steady states and the two steady states can be change from chaos. This is the boundary of chaos property of motor systems of Clione.