目的：定量描述离子通道门控动力系统的记忆。方法：利用随机点过程理论，建立离子通道的动力学模型，用点过程协方差密度度量通道记忆。结果：提出了模型的一般框架，并给出了协方差密度的性质以及模型的拟合优度检验。结论：用镶嵌点过程模型从记忆性及其变化的角度来描述离子通道的活动，克服了Ｍａｒｋｏｖ模型和分形模型各自的局限 Purpose: To quantitatively describe the memory of ion channel gated dynamic systems. Methods: Using the random point process theory, the dynamic model of the ion channel was established, and the point process covariance density was used to measure the channel memory. Results: The general framework of the model was proposed and the properties of the covariance density and the goodness-of-fit test of the model were given. Conclusion: The process of ion channel is described from the point of view of memory and its changes using the mosaic point process model, which overcomes the limitations of the Markov model and the fractal model.