This paper proposes Insights-on-Graph (IOG), a novel framework for enhancing the effectiveness of robots in fire prevention and suppression. IOG leverages large-scale language models (LLMs) and large-scale multimodal models (LMMs) to build a knowledge graph (KG) based on knowledge extracted from fire prevention guidelines and robotic emergency response documents. By integrating these KGs and LMMs, it generates a risk graph from real-time video, enabling early fire risk detection and interpretable emergency response (configuration of task modules and robot components) based on changing situations. The practicality and applicability of IOG are verified through simulations and experiments.