The invention discloses a multi-video streaming data concurrent modulation and buffer storage method based on a continuous storage model, comprising the following steps: A, when a data storage node is initialized, establishing a block file with fixed size on each of just preliminarily formatted disks and then dividing each of the block files into a plurality of continuous file pieces with the fixed size; B, when multipath video streaming network I/O arrives, merging the data in each path of the video streaming into one or more integral piece data in a memory cache according to the size of the file pieces; C, writing the piece data in the file pieces of the disks in batches by a scheduler. Aiming at the method disclosed by the invention, for the storage of the mass high-definition video streaming data, the self-defined continuous storage model is provided; the space fragmentation of disk partition due to frequent creation and deletion of the files is effectively solved, a magnetic disk head is prevented from moving back and forth in concurrent write-in process of the video streaming files, the I/O throughput rate of the disks is utilized efficiently and simultaneously the writing speed of the disks is improved.