EmoLLM is a mental health large language model fine-tuned from LLM instructions, designed to comprehensively understand and promote the mental health status of individuals, groups, and even entire societies. It encompasses key components such as cognitive factors, emotional factors, behavioral factors, social environment, physical health, psychological resilience, preventative and intervention measures, and assessment and diagnostic tools. Through fine-tuning configurations, EmoLLM can provide support in mental health counseling tasks, helping users better understand and cope with psychological issues.