A burst-segmentation-based and path-correlation-considered controlled retransmission scheme in optical burst smtching (OBS) core nodes is proposed. The improvements compared with previous researches are that the performance of several times retransmission under the same transmission probability and the different transmission probability situations are evaluated when the values of retransmission probability are different. The number of times for retransmission is limited to realize the controllability for both retransmission probability and retransmission times. In addition, the impact of path correlation on the proposed burst-segmentation-based controlled retransmission scheme is considered to overcome the limitation of previous researches that only refer to single path and cannot capture the effect of network topology. Path blocking probability and byte loss probability are used to evaluate the performance of proposed method, and an extensive simulation is used to validate it. From the results it can be seen that, compared with the conventional retransmission scheme, path blocking probability reduces by 13%, 24%, 16%, 6% with every decrement of 0.2 for retransmission probability respectively from 1.