Abstract: Based on the study of sedimentary facies and diagenesis，the characteristics and distribu-tion of favourable reserve-permeate belt in limestone layer can be determined through the analysis of microseismic phases of the belt as well as the interpretation of drilling，geology and logging. Through the discussion of the microseismic phases of Fu Cheng Zhai's and Shuang Jia Ba's T:-‘container constructions in the east of Sichuan Province，the paper tried to prove the effectiveness of the application of microseismic_ phases in the prediction of favourable reserve一permeate belt in limestone layer.

Key words: Microseismic phases Amplitude of seismic wave