Cyclohexane (CHA), methylcyclohexane (MCHA), ethylcyclohexane (ECHA) and butylcyclohexane (BCHA) were chosen as model compounds to study the conversion of alkylcyclohexane on different zeolite catalysts. Ring opening selectivity and C—C bond energy of the branched chain were calculated, and effects of different zeolite catalysts on the selectivity of light olefins were discussed. It could be found that increasing branch length could improve cracking performance of the side chain, but reduce the ring opening selectivity. Under the same reaction conditions, the sequence of the four model compounds conversion capabilities is butylcyclohexane, ethylcyclohexane, methylcyclohexane, cyclohexane. Beta and USY zeolite catalysts are favorable for the conversion of alkylcyclohexanes; is higher than that of Beta and USY.