A service processing device and method include receiving a service processing request including data interaction processing mode information and account information, and determining, based on the service processing request, one or more data interaction processing mode candidates for executing the service processing request. The data interaction processing mode candidates are determined from a plurality of data interaction processing modes. Each of the data interaction processing modes includes processing parameters, and at least one of the processing parameters is different between different data interaction processing modes. Each of the one or more data interaction processing mode candidates has an associated processing success rate based on a historical processing record of the data interaction processing modes. The method also includes determining, based on the processing success rates, a data interaction processing mode candidate as a data interaction processing mode for executing the service processing request.