Abstract: Various embodiments provide methods, apparatus, and systems for business processing. An exemplary business processing method for a user terminal can be performed by establishing a connection between the user terminal and a first server for providing a third-party service via a second server for providing a public service. A business processing request can be obtained by the user terminal, which can then send the business processing request to the first server for providing the third party service via the second server for providing the public service. The first server for providing the third party service can include a business system server. Corresponding to the business processing request, the user terminal can receive a business processing response returned from the first server for providing the third-party service and forwarded by the second server for providing the public service.