The present invention provides a diarylpyrazole compound, a composition comprising same, and a use thereof. The diarylpyrazole compound refers to the compound represented by a formula (I) or a tautomer, a stereoisomer, a prodrug, a crystalline form, a pharmaceutically acceptable salt thereof, a hydrate, or a solvent compound. The compound and the composition of the present invention can be used for treating BRAF kinase mutant proliferative diseases and have better drug metabolism and pharmacokinetic properties.