A method and system for processing database operation requests, the method comprising: receiving a database operation request from a user; determining whether the database operation request is a heavy-duty request; if the database operation request is a heavy-duty request, routing the database operation request to a heavy-duty request database partition for processing heavy-duty requests to be processed, and recording the data scope affected by the database operation request into a metadata repository, wherein the heavy-duty request database partition is set besides an original normal database partition.