Standards are a valuable tool for information transmission and knowledge carrier, providing necessary technical support for the sustained development of the social economy. Currently, there are relatively sufficient standard resources in the field of urban gas pipeline networks, but unsystematic gas standard specifications are difficult to meet the requirements of quick and accurate query and matching for accident emergency response. The emergency standard literature of urban gas pipeline network was focused on. The knowledge graph construction technology was used to logically analyze and sort out the standard literature in the field of urban gas. The knowledge graph of emergency disposal and rescue of urban gas pipeline network was constructed. Through case mining, it shows the decision support value of the knowledge graph in the emergency disposal of gas pipeline network accidents and the value of error correction tools in the self-improvement of the relevant standardization systems.