In Huanghua Depression igneous reservoir is widely developed both in the vertical and horizon direction. On the basis of core observation and thin slice analysis, log response of various igneous rocks was studied, and a lithologic identification plate of igneous rocks based on conventional well logs in Huanghua Depression was established. Then the lithologic identification plate of igneous rocks with the right value of correspondence analysis combined with the log response of various igneous rocks was corrected. After validation, the result of correction to lithologic identification plate of igneous rocks by correspondence analysis obtained very good effect in Huanghua Depression.