The invention discloses an elevator handrail butadiene styrene rubber high in stress at definite elongation and resistant to flexible fatigue. The elevator handrail butadiene styrene rubber is composed of the following components in percentage by weight: 25-31% of butadiene styrene rubber, 6-10% of natural rubber, 3-6% of hardening resin, 30-36% of carbon black, 12-16% of white carbon black, 1-3% of softening plasticizer, 2-4% of activator, 0.5-1.5% of vulcanizing agent, 0.5-1.5% of accelerant, 0.5-1.5% of coupling agent and 4.5-8.5% of auxiliaries. The elevator handrail butadiene styrene rubber has the characteristics of high hardness, high stress at definite elongation, flexible fatigue resistance, appropriate percentage of elongation and good processability, and is applicable to an extrusion molding processing technique, and the obtained vulcanized product is long in service life.