The invention provides a query request processing method and device. The query request processing method comprises the following steps: receiving a thread which applies for entering a storage engine, wherein the thread is used for processing a current statement; after a situation that the thread applies for entering the storage engine is determined, distributing the current frequency of access permit for the thread; and distributing a first access permit numerical value for the thread, wherein the first access permit numerical number is inversely proportional to the current frequency. The method can shorten query response time based on a concurrency control strategy and improve the query efficiency of the storage engine.