A contention free random access method, comprising: sending (S502, S702, S902), by a network side device, configuration information of a preamble for contention free random access and a physical random access channel, PRACH, resource for contention free random access or configuration information of a PRACH resource for contention free random access to a user equipment, UE, when the UE performs contention free random access, so that the UE sends a random access request through the preamble for contention free random access and the PRACH resource for contention free random access or through the PRACH resource for contention free random access, and sends uplink data on a physical uplink shared channel, PUSCH, resource corresponding to the preamble for contention free random access and the PRACH resource for contention free random access or corresponding to the PRACH resource for contention free random access; and receiving (S506, S706, S906), by the network side device, the random access request from the UE according to the preamble for contention free random access and the PRACH resource for contention free random access or according to the PRACH resource for contention free random access, and receiving the uplink data from the UE on the PUSCH resource corresponding to the preamble for contention free random access and the PRACH resource for contention free random access or corresponding to the PRACH resource for contention free random access; wherein before the network side device sends the configuration information of the preamble for contention free random access and the PRACH resource for contention free random access or the configuration information of the PRACH resource for contention free random access to the UE when the UE performs contention free random access, the method further comprises: informing (S500, S700, S900), by the network side device, the UE of a correspondence relationship between preambles for contention free random access and PRACH resources for contention free random access and PUSCH resources or between PRACH resources for contention free random access and PUSCH resources through a system message or a dedicated radio resource control, RRC, signaling. sending (S502, S702, S902), by a network side device, configuration information of a preamble for contention free random access and a physical random access channel, PRACH, resource for contention free random access or configuration information of a PRACH resource for contention free random access to a user equipment, UE, when the UE performs contention free random access, so that the UE sends a random access request through the preamble for contention free random access and the PRACH resource for contention free random access or through the PRACH resource for contention free random access, and sends uplink data on a physical uplink shared channel, PUSCH, resource corresponding to the preamble for contention free random access and the PRACH resource for contention free random access or corresponding to the PRACH resource for contention free random access; and receiving (S506, S706, S906), by the network side device, the random access request from the UE according to the preamble for contention free random access and the PRACH resource for contention free random access or according to the PRACH resource for contention free random access, and receiving the uplink data from the UE on the PUSCH resource corresponding to the preamble for contention free random access and the PRACH resource for contention free random access or corresponding to the PRACH resource for contention free random access;