Shared situation awareness has a wide range of implication in army and combating area，aviation research，electronic industry，industry process-control，etc. to promote the collaboration performance. However，shared situation awareness theory has been undervalued in crisis response process，even though collaboration is highly required. Based on previous literatures，this research builds the “crown model” to straighten out the influence mechanism among multiple factors，the shared situation awareness of different subjects，and the collaboration performance of crisis response. Take the 2014 Shanghai New Year Eve stampede incident as an example to carry on analysis，the result shows that，academically，“crown model” is more explicit compared to other frameworks，and according to the model，practitioners will better understand how to promote the coordination and crisis response performance.