Abstract: As one of main lithologic reservoir style, the beach bar sandstone is widely developed, with great exploration potential, being the most important exploration targets in Jiyang sag. In view of the sandstone reservoir characteristics of thin single interval, rapid lateral changing and subtle feature, a series of effective special beach bar sandstone prediction technology has been developed, such as high accuracy palaeogeomorphology buildup technology, learning type seismic wave form predicting technology ,and facies controlling attributes dimensionality reduction predicting technology, which play important roles in the exploration practices in west section of Dongying sag, acquiring obvious economic benefit, promoting the beach bar sandstone reservoir exploration in other areas of Jiyang depression.