The aerial photogrammetry can provide not only high resolution ortho images

accurate Digital Elevation Models and 3D Landscape Maps

but also all kinds of accurate and visualized measuring tools for the fast response to the disaster rescue.These applications of aerial photogrammetry can help the breakdown gang design effective rescue plans and dispatch salvagers rationally shortly after the disaster.However

in the emergency response

the aerial images can not be taken according to the conventional aerial photography in the limited time.That means the airplane should fly along the main traffic lines

e.g.roads

rivers and bridges

and when the airplane fly above a county it should circle around in the air to acquire the detailed information of the county.At the same time

although there are POS（GPS/IMU）data

the precision of POS is very low

because there are neither reference stations for GPS nor ground control points for calibrating the POS system at emergency time.So for the disaster rescue

it is very important to process the mass unconventional aerial images accurately and quickly in a highly efficient way.DPGrid is a haerial photogrammetry software developed by Wuhan University.It utilizes the blade severs as the computing nodes and applies the robust digital photogrammetry arithmetic and parallel computing to realize quick processing of mass aerial data.In the China Earthquake Rescue DPGrid processed 4393 unconventional aerial photography DMC images in 111 hours and provided many timely and accurate surveying and mapping products for the rescue organization.This paper introduces the applications of aerial photogrammetry in the emergency response through discussing the method of how DPGrid processed the mass aerial images in China Earthquake Rescue.The main content includes: the architecture of DPGrid;the robust stereo image matching for the images with large rotation angle;the bundle adjustment with POS but without ground control points for removing the POS relative error;the DPGrid parallel computing for generating ortho images and its production efficiency.The paper also shows readers some aerial photogrammetry products and applications in the Emergency Response.For example

the operator can measure the length of broken bridges on ortho images

evaluate the area and earth volume of landslide mass on ortho image superposed with DEM

and roam and measure 3D coordinates in the 3D virtual environment

etc.The aerial photogrammetry has provided many visualized

accurate and valuable surveying data for the China Earthquake Rescue

and showed its important role in the emergency response.But how to perfect the emergency response mechanism of aerial photogrammetry and make it an important part of the National Emergency Response Mechanism is the duty and incumbency of all surveying workers.