A method for multi-mode base station data transmission between network side and the multi-mode base station, comprising the steps of: a multi-mode base station mapping data to be transmitted onto preconfigured bandwidth resources corresponding to a mode of the data to be transmitted, wherein bandwidth of the bandwidth resources is not greater than a traffic limit configured for the mode of the data to be transmitted; the multi-mode base station using the bandwidth resources to transmit the data to be transmitted; before the multimode base station mapping the data to be transmitted onto the preconfigured bandwidth resources corresponding to the mode of the data to be transmitted, the method further comprises: configuring traffic limit, weight and priority for each mode supported by the multi-mode base station; wherein, configuring the traffic limit, weight and priority for each mode supported by the multi-mode base station is characterized by: dividing resources that can be allocated by the multi-mode base station into one or more bandwidth groups, wherein each of the bandwidth groups individually shares resources of bandwidth allocated for each of the bandwidth groups; dividing the resources of the bandwidth in each of the bandwidth groups into a plurality of bandwidth resources, and allocating each of the bandwidth resources to a mode supported by the multi-mode base station respectively; according to the mode corresponding to each of the bandwidth resources, configuring the traffic limit, weight and priority for each of the bandwidth resources in one and the same bandwidth group respectively. a multi-mode base station mapping data to be transmitted onto preconfigured bandwidth resources corresponding to a mode of the data to be transmitted, wherein bandwidth of the bandwidth resources is not greater than a traffic limit configured for the mode of the data to be transmitted; the multi-mode base station using the bandwidth resources to transmit the data to be transmitted; before the multimode base station mapping the data to be transmitted onto the preconfigured bandwidth resources corresponding to the mode of the data to be transmitted, the method further comprises: configuring traffic limit, weight and priority for each mode supported by the multi-mode base station; wherein, configuring the traffic limit, weight and priority for each mode supported by the multi-mode base station is characterized by: dividing resources that can be allocated by the multi-mode base station into one or more bandwidth groups, wherein each of the bandwidth groups individually shares resources of bandwidth allocated for each of the bandwidth groups; dividing the resources of the bandwidth in each of the bandwidth groups into a plurality of bandwidth resources, and allocating each of the bandwidth resources to a mode supported by the multi-mode base station respectively; according to the mode corresponding to each of the bandwidth resources, configuring the traffic limit, weight and priority for each of the bandwidth resources in one and the same bandwidth group respectively. configuring traffic limit, weight and priority for each mode supported by the multi-mode base station; wherein, configuring the traffic limit, weight and priority for each mode supported by the multi-mode base station is characterized by: dividing resources that can be allocated by the multi-mode base station into one or more bandwidth groups, wherein each of the bandwidth groups individually shares resources of bandwidth allocated for each of the bandwidth groups; dividing the resources of the bandwidth in each of the bandwidth groups into a plurality of bandwidth resources, and allocating each of the bandwidth resources to a mode supported by the multi-mode base station respectively; according to the mode corresponding to each of the bandwidth resources, configuring the traffic limit, weight and priority for each of the bandwidth resources in one and the same bandwidth group respectively. dividing resources that can be allocated by the multi-mode base station into one or more bandwidth groups, wherein each of the bandwidth groups individually shares resources of bandwidth allocated for each of the bandwidth groups; dividing the resources of the bandwidth in each of the bandwidth groups into a plurality of bandwidth resources, and allocating each of the bandwidth resources to a mode supported by the multi-mode base station respectively; according to the mode corresponding to each of the bandwidth resources, configuring the traffic limit, weight and priority for each of the bandwidth resources in one and the same bandwidth group respectively.