The discipline of psychology plays a pivotal role in contributing to the development of scientific knowledge and the advancement of society, as well as being a prominent area of scientific research globally. In recent years, an increasingly number of artificial intelligence technologies have been combined with psychology technologies, aiming to facilitate in promoting the development of peoples mental health through artificial intelligence technology. Numerous chatbot technologies have emerged over the years, and these chatbots have excellent comprehensive capabilities and have been widely used in the field of psychology. However, there is little literature reviewing the application of chatbots in the field of psychology, and this review aims to summarize the technologies of chatbots and their application in psychology in this last several years, in order to help subsequent scholars understand the relevant research results in this field more quickly. This study summarizes some of the chatbot approaches in recent years and divides them into four parts, which are 1) ChatGPT 2) Chatbot 3) Accessing personality and emotions 4) Mental health support, and this study also further describes the advances, shortcomings, and future perspectives of the research in this field. and future perspectives in this field, hoping to be helpful to subsequent scholars.