In today's specialized labor division economic system, the majority of manufacturers make use of go-between organizations to reach their products to the users. These go-between organizations that are situated between the producer and user's make up the so called ”marketing channel” or ”distribution channel”. But commanding the life line of these marketing channels is the so-called ”information flow”. From the point of view of the types and evolution of Taiwan book marketing channel, this paper attempts to probe into how public libraries can comprehensively take hold of the country's book publication information and then proceed to establish ideal collection resources that conform to the needs and demands of readers so that a higher quality of reading atmosphere can be provided.