Cache-based target range application node cold start acceleration method and system

The invention discloses a cache-based target range application node cold start acceleration method and system, and relates to the technical field of target range application. According to the invention, creating and releasing requests of a target range mirror image instance are coordinated by a scheduler module and are distributed to a specific business service module for processing; when a mirror image instance creation request is received, preferentially searching the usable mirror image instance with the longest cache time from the instance cache for multiplexing; when a mirror image instance release request is received, whether the mirror image instance cache operation is executed or not is determined according to the cache credibility, if cache is needed and the space of the cache pool is insufficient, the cache pool elimination operation is executed, and the existing cache space is gradually released according to the cache period, the cache number and the cache cost of the mirror image. The cache effect