In disaster scenarios like floods and earthquakes, not only the infrastructure is in a shattered state, but also victims are in critical situations. In such scenarios, Unmanned Aerial Vehicle (UAV) can be used as effective equipment to resupply resources for disaster scenarios. By installing communication infrastructure, such as a NodeB(eNB) based on Long Term Evolution(LTE), UAV is able to provide a data transmission link for victims. Ensuring communication reliability and controlling delay are the keys of emergency response, but due to the impact of disasters, some communication infrastructures can not be replenished with electricity. A new uplink scheduling scheme called Critical Awareness Scheduling(CAS) was proposed based on the communication framework with UAVs. In the CAS strategy, the location of users, equipment power and communication link quality of users were fully considered, and resource allocation was optimized based on these information, so that the victims were given priority in the allocation of resources.The simulation results show that using proposed CAS strategy, the Quality of Experience (QoE) of victims is improved