The invention relates to an arylaminopyrimidine or triazine derivative, and a preparation method, a medicinal composition and a use thereof, and concretely relates to a compound represented by formula I, or a pharmaceutically acceptable salt or a solvate thereof. In the formula I, R1 to R7, X and Y are defined in the description and claims. The invention also relates to a preparation method of the compound of formula I, the medicinal composition containing the compound, and the pharmacy use of the compound and the medicinal composition. The compound of formula I is an effective tyrosine kinase irreversible inhibitor, and especially has a strong inhibition effect on EGFR-T790M drug-resistant tumors.