[Purpose/significance] Reading bazaar is a reading service model emerging in public libraries in recent years. This paper takes the“urban hall wake up program”program as an example to discuss the systematic elements and constructive logic of reading bazaar. [Method/process] Under the perspective of“spatial triadic dialectics”, we an⁃alyze and elaborate the four major elements of reading bazaar and the logic of construction through literature research and data analysis. Finally, it puts forward relevant suggestions for the problems of reading bazaar. [Result/conclusion]The reading bazaar includes four major elements: space, content, form and organization; and there are four major con⁃structive strategies,conjunction, determination,disjunction,integration.