This paper describes the possibility about the application of fiber optical flying head in the storage of the computer. Because the single-mode optical fiber with photoresist lens has some advantages, for example, light mass, simple optical-path, adjustment easy and parallel processing etc., it can become the part of hard-disc driver in computer. And same times, this paper introduced the principle of the tracking, servo, and the optical-path of reading/writing, it may be used in optical disk driver.