The present invention relates to an aromatic derivative, a preparation method thereof and medical applications thereof. Particularly, the present invention relates to a novel compound as shown in the general formula (I) and a pharmaceutically acceptable salt thereof, a pharmaceutical composition containing the same, and a preparation method thereof. The present invention further relates to use of the derivative and a pharmaceutically acceptable salt thereof or a pharmaceutical composition containing the same, in the preparation of therapeutic agents and especially FGFR4 tyrosine kinase inhibitors, and in the preparation of a drug for treating and/or preventing diseases such as tumor and inflammation. Wherein each substituent of the general formula (I) is identical with the definition in the description.
