Yuxi-Know is a knowledge graph question-and-answer system based on a large model RAG knowledge base, built using Llamaindex + VueJS + Flask + Neo4j. It supports model calls from OpenAI, mainstream domestic large model platforms, and local vllm deployment, and can implement functions such as knowledge base Q&A, knowledge graph retrieval, and online search. The main advantages of this system are flexible adaptation to multiple models, support for multiple knowledge base formats, and strong knowledge graph integration capabilities. It is suitable for enterprises and research institutions that need efficient knowledge management and intelligent question-and-answer, and has high technological advancement and practicality.