Abstract：The energy shot by the source in the laboratory of seismic-physical model has significant directional difference，called source radiation effect of physical model. During AVO processing and analysis of seismic-physical model data，the radiation effect of source may produce large error in results.Based on the character of real physical model end demand of AVO processing，the paper carried out theoretical and experimental study how to eliminate the impact of radiation character of source，presented the method using Zoeppritz equation to accurately compute reflectivity and compensation coefficient for the energy compensation of directional radiation of source and conducted open-angle compensation for real-acquired data of physical model. The results showed that changing rotational angle of energy transducer has no effect on openangle attenuation;the open-angle attenuation in
