1. A method for allocating addresses to data buffers in a distributed buffer chipset, applied in a distributed buffer chipset controlled by a memory controller, wherein the distributed buffer chipset at least comprises a central buffer connected to the memory controller through one Command/Address channel (CA) and a plurality of data buffers respectively connected to the memory controller through respective data channels, and the data buffers are connected to the central buffer through sharing one data control channel, the method for allocating addresses to data buffers in a distributed buffer chipset comprising: 1) at the memory controller, sending an address allocation start signal to the central buffer through the CA, and sending respective address parameters to the corresponding data buffers through the data channels; 2) at the central buffer, sending the received address allocation start signal to all the data buffers through the data control channel, so as to inform all the data buffers of preparing for receiving the address parameters through the respective data channels; and 3) at each data buffer, correspondingly receiving and latching the address parameter through the respective data.