The present application provides a compound of Formula (I) as an inhibitor against wild-type EGFR and/or mutant EGFR, which may be used for treating human non-small cell lung cancer individually or in combination with other therapeutic agent(s). The compound of Formula (I) of the present application may be used for treating patients of drug-resistant human non-small cell lung cancer harboring wild-type EGFR and/or EGFR T790M mutation and/or EGFR L858R mutation and/or EGFR delE746_A750 mutation.