Under large amount of data the skip operation made data paging very slow, how to improve the performance of data paging efficiency became an import issue for MongoDB. We came up a where-limit data paging method from analysis of the built-in skip-limit MongoDB data paging method's advantages and disadvantages, and the key factors affecting the speed of the data paging. Changed the rules of query document and used reasonable indexes can improve data paging efficiency. The experimental results confirmed that the optimized query methods in pagination operations could significantly improved the speed.