Abstract：The diagram approach is the useful methods to research on social vulnerability in Emergency Management.It is not only helpful to define the territory and contents of social vulnerability but also convenient to explicate the system structure and operating mechanism of Emergency Management, and the mutuality between social vulnerability and other factors.To utilize structure diagram, flow chart, relation schema, mapping and coordinate may push on the the deeper, broader and clearer study on social vulnerability.

Keyword：emergency management;wocial vulnerability;diagram;