As a new flash memory device,SSD has attracted much attention for its high-performance,high reliability and lowefficiency. However,the reliability of SSD storage and efficiency of access has been increasingly challenged in the era of bigdata. By coupling numbers of hard disk storage devices through RAID controller,a SSD-based RAID is formed. In this way,users are provided with high-capacity storage space,efficient parallel access performance and different degrees of reliabilityassurance. Through systematic analysis of previous research on SSD-based RAID technology,different mechanism of SSDbasedRAID are summarized and classified. In the respect of RAID array composing of solid hard disks,two representativestudies categorized by different loss mechanism between disks are mainly summarized. In the aspect of chip level in SSDRAID,the characteristics and weakness of the RAID technology of delay calibration data,high-performance as well as highreliability RAID technology,reliability-enhanced RAID technology and embedded RAID technology are discussed. Lastly,ageneralization of SSD-based RAID technology is presented. In addition,research trends in this area are put forward,includingembedded RAID technology,reliability analysis.