Wensuge Sikuquanshu is one of the seven Sikuquanshu series. In 1966, Ministry of Culture of the People's Republic of China authorized Gansu Provincial Library for preservation of Wensuge Sikuquanchu which was previously protected by Liaoning Provincial Library. Since then, Wensuge Sikuquanshu was tossed about through many places for preservation. This article analyzes the natural conditions, facilities at each location and protection measures. The author also discusses how Gansu province viewed the protection of the ancient literature, and believes that attentions from the government, the legislation of local laws, management from professional team and rich human culture originated from scholars' research and study are the core reasons for the continuous inheritance of the Chinese cultural heritage.