The present invention discloses a fused-ring or tricyclic aryl pyridine compound used as a mutation selective EGFR inhibitor. And more specifically, the present invention discloses a compound used as an EGFR inhibitor or pharmaceutically acceptable salt thereof. The structure of the compound is shown in Formula (I).本發明公佈了一種稠環或三環芳基嘧啶化合物作為突變選擇性的EGFR抑制劑。具體地,本發明公開了作為EGFR抑制劑的式(I)的化合物或其藥學上可接受的鹽。