社会角色是和社会地位联系在一起的预期的态度和行为模式。而权力是人们和机构控制其他人的行为和物质生活的能力。二者之间存在密不可分的联系,本文旨在通过对刑事审判中公诉人与被告之间的称谓形式,话题控制及语言形式的研究,来揭示庭审话语中角色和权力的关系,促进刑事审判制度的改革与发展。 Social roles are the expected attitudes and behavior patterns associated with social status. And power is the ability of people and institutions to control the behavior and physical life of others. The purpose of this paper is to reveal the relationship between the role and power in courtroom discourse and to promote the system of criminal trial through the study of the form of title, topic control and language form between prosecutor and defendant in criminal trial Reform and development.