Dagang oilfield shallow gas reservoir is referred to those with burial depth lower than 400~1 500 m. Using the pre-stack detection technology which is based on elastic medium model,adopting AVO method to build the forward model,the 3-D seismic data from Dagang district are processed. The application of the earthquake information reservoir gas-bearing prediction technology,it is expected that there will be 5~6 billion cubic meters of newly added shallow gas reserves.10 target blocks have been screened out and used as a preferred target for future production capacity construction.