Abstract: The vulcanization and damping properties of solution-polymerized styrene-butadiene (SSBR) containing different styrene contents and vinyl contents were investigated.Resultsshowed that the vulcanization time (t₉₀) steadily increased and maximum torque (M_H) decreased due to the increasing of the 1, 2-addition butadiene units in the SSBR. The vulcanization time (t₉₀) and maximum torque (M_H) both reduced when the content of styrene increased in the SSBR. The chemical structure and cross linking density of the base rubber had significant effects on the mechanical properties of the vulcanizates. The damping temperature range of vulcanizate would be effectively broadened by mixing two kinds of rubbers with different molecular chains. When the blending mass ratio of two kinds of SSBR with styrene contents of 25% and 50% was 8 ∶2, the damping performance was the best. When tanδ≥0.3, the glass transition temperature range was more than 37 ℃.