The invention discloses a data ahead-reading method, device, equipment and computer readable storage medium. The method comprises in advance storing data of a preset byte size of every file in a hardsick into preset storage equipment, wherein the data reading speed of the preset storage equipment is higher than that of the hard disk; receiving a data reading request sent by a client; determiningwhether data to be read exist in a cache space, if so, returning corresponding data to be read in the cache space to the client according to the data reading request, else, returning corresponding data to be read in the preset storage equipment to the client according to the data reading request. According to the data ahead-reading method, device, equipment and computer readable storage medium, data in the preset storage equipment is read, and the speed of reading the data of the preset storage equipment is higher than that of reading the data of the hard disk, so that the data ahead-reading method, device, equipment and computer readable storage medium can increase the speed of primary data reading and further improve the data reading efficiency.