在清末中國與西方開始密集的接觸之後，中國在各個層面都展開了變化，藏書機構的轉變也是其中之一。傳統中國藏書機構是封閉，並且只提供少數的人使用。透過對於西方藏書機構的觀察，在西元一九O一年以後，江浙地區逐步開始有著新式藏書機構的建設。這種新式藏書機構講求的是「公共性」，在清末地方菁英與清廷同時開始新式藏書機構的建設工作，到了中華民國成立之後，透過管理制度化、規範法制化，以及經費預算化的方式，使政府機關成為建設工作的主導力量。 外在環境的變化也造成藏書機構內部功能的轉變，新式藏書機構在管理規章、分類編目方式、空間配置等各個方面也都產生了變化，很多新的觀念也應用在了藏書機構當中，這些變動全都是配合時代的需要而演進。此外，清末民初對於社會教育的需求逐漸增加，新式藏書機構也成為主要的媒介之一。藏書機構不僅在內部功能上做擴充，不同類型的藏書機構也逐一誕生。 本文便希望透過對於西元一九O一年到一九三O年江浙地區藏書機構的觀察，去了解藏書機構的轉型過程，內、外部的變化，清末民初中國社會如何要求藏書機構轉型，藏書機構本身又做出哪些轉變來迎合這樣的需求，是本文探討的重點。 China changed transformed in all respects after close contact with the West in the late Qing Dynasty. The convert of libraries was one of them. The traditional libraries in China were unenlightened and just opened for few people. In 1901, through the observation to the west, the areas of Jiangsu and Zhejiang Provinces began to set up new styled libraries. This kind of new libraries were particular about the public character. Since the end of Qing Dynasty, the local elite and the court started to construct new styled libraries. In R.O.C., the government became the leading role in the construction because they institutionalized in management, legalized in regulation and estimated in expenditure. The transformation in external environment also led to the convert of internal function of the libraries. It changed a lot no matter in managing regulation, classification cataloging and layout of space in new styled libraries where some new concepts were applied. Those changes were evolved which met the ages’ requirement. In addition, the social education was needed gradually in the late Qing Dynasty and early Republic of China. The new styled libraries were the main agent. The internal function of the libraries not only expanded, but brought various styled libraries. Reading this article, I hope you may understand the diversion processes, the internal and external changes of the libraries in Jiangsu and Zhejiang Provinces in 1901 to 1930. And how the Chinese society requested the libraries to convert in the late Qing Dynasty and early Republic of China and what did the libraries be changed to meet the requirement of Chinese society. These are the priorities I treated.