Abstract: With the development of mobile Internet technology and the change of people's living habits, the main service work of library has been greatly impacted, and library extinction once was all the go. With the rise of the concept and application of "Third Space", the value of library as the place and space is becoming more and more prominent. According to the general property of "Third Space" and the special attributes of library as the cultural sites to acquire and utilize knowledge, this paper explored the establishment of exclusive cultural brand for library from the perspective of space, and built the document resource service base, early childhood reading promotion base, reading experience sharing and social contact base, lifelong learning base, and made it become "Third Cultural Space" for residents.

Key words: Third Space