Rubber composition for tire and tire comprising the same

The present invention provides a rubber composition for a tire improving abrasion resistance and grip performance with a high level balance, and a tire comprising the same. The present invention relates to a rubber composition for a tire comprising 5 to 150 parts by weight of polystyrene having weight average molecular weight of 500 to 10000 based on 100 parts by weight of a diene rubber, and a tire comprising the same.