In this paper, we proposed a Partially Reliable- Concurrent Multipath Transfer (PR-CMT) that is featured with partially reliable multi-path transmission based on the Concurrent Multipath Transfer (CMT) and the Stream Control Transmission Protocol Partial Reliability Extension (PR-SCTP). The proposed partially reliable transmission is realized by the "timed reliable service". Data in PR-CMT are associated with lifetime. When the lifetime of the data is expired, PR-CMT would not transmit and retransmit the expired data. The false acked TSNs problem is identified in PR-SCTP and CMT. In this paper, the proposed PR-CMT can adopt some mechanisms to eliminate the false acked Transmission Sequence Numbers (TSNs) problem. Simulation results show that PR-CMT can (i) have better transmission efficiency and (ii) consume less bandwidth.