This paper explores the multifaceted impacts of ChatGPT on human-computer interaction (HCI), psychology, and society through a literature review. It delves into the technical foundation of ChatGPT, including its Transformer architecture and Reinforcement Learning from Human Feedback (RLHF) process, which enable it to generate human-like responses. The author examines how ChatGPT enhances conversational interfaces and its psychological effects, such as the potential for empathy and support in learning versus the risks of reduced interpersonal connections. In the commercial and social domains, the paper discusses ChatGPT's applications in customer service and social services, highlighting improvements in efficiency and challenges like privacy issues. Finally, the author offers predictions and recommendations for future development directions and the impact on social relationships. The paper is structured into several sections: 1. **Introduction**: Provides an overview of ChatGPT, its capabilities, and its widespread applications. 2. **Research Purpose**: Outlines the research questions focusing on the technical principles and psychological impacts of ChatGPT. 3. **Methodology**: Describes the inclusion and exclusion criteria, search strategy, and data sources used in the literature review. 4. **Technical Description**: Explains the technical evolution of ChatGPT, including its training models and breakthroughs in NLP interactions. 5. **Psychological Implications**: Discusses the psychological support, emotional regulation, and social relationships influenced by ChatGPT. 6. **Social Implications**: Examines the opportunities and challenges presented by ChatGPT in education, healthcare, and scientific research. 7. **Business Implications**: Explores the impact of ChatGPT on various business domains. 8. **Future Outlook**: Offers directions for optimizing ChatGPT and addressing potential social and ethical issues. The paper concludes by emphasizing the need for a balanced approach to integrating ChatGPT into daily life, recognizing its benefits while being mindful of its potential negative impacts.This paper explores the multifaceted impacts of ChatGPT on human-computer interaction (HCI), psychology, and society through a literature review. It delves into the technical foundation of ChatGPT, including its Transformer architecture and Reinforcement Learning from Human Feedback (RLHF) process, which enable it to generate human-like responses. The author examines how ChatGPT enhances conversational interfaces and its psychological effects, such as the potential for empathy and support in learning versus the risks of reduced interpersonal connections. In the commercial and social domains, the paper discusses ChatGPT's applications in customer service and social services, highlighting improvements in efficiency and challenges like privacy issues. Finally, the author offers predictions and recommendations for future development directions and the impact on social relationships. The paper is structured into several sections: 1. **Introduction**: Provides an overview of ChatGPT, its capabilities, and its widespread applications. 2. **Research Purpose**: Outlines the research questions focusing on the technical principles and psychological impacts of ChatGPT. 3. **Methodology**: Describes the inclusion and exclusion criteria, search strategy, and data sources used in the literature review. 4. **Technical Description**: Explains the technical evolution of ChatGPT, including its training models and breakthroughs in NLP interactions. 5. **Psychological Implications**: Discusses the psychological support, emotional regulation, and social relationships influenced by ChatGPT. 6. **Social Implications**: Examines the opportunities and challenges presented by ChatGPT in education, healthcare, and scientific research. 7. **Business Implications**: Explores the impact of ChatGPT on various business domains. 8. **Future Outlook**: Offers directions for optimizing ChatGPT and addressing potential social and ethical issues. The paper concludes by emphasizing the need for a balanced approach to integrating ChatGPT into daily life, recognizing its benefits while being mindful of its potential negative impacts.