Abstract: Study human language is a way to study concept illustrate and store in human brain.All the concepts in the brain compose of a complex network，in which the concepts of given domain ontology make up a sub-network.When a new concept is studied，its relative concepts will be recalled and studied once more.The learning process of a concept is determined by command degree and forgotten-velocity.After be studied one or several times，one concept can be thoroughly commanded.Human language learning process is well simulated by cellular automata，which illustrates that domain ontology is a useful tool to depict human concept.

摘要： 研究语言学习是研究人类大脑中概念表示和存储的重要途径。大脑中的全体概念形成了一个复杂网络，属于同一领域的概念构成领域本体。当学习一个新概念时，将其插入到概念网络中，同时与之联系的同一领域本体中的相似概念也被再次学习。概念学习的过程由掌握程度和遗忘速率两者共同决定，只有通过一次或数次学习一个概念才真正被掌握，长时间未被学习而遗忘的概念从网络中删除。语言学习过程可以用元胞自动机进行。模拟结果与人们的语言学习经验相符，表明本体是描述概念的有效工具之一。