In the era of digital economy, the service outsourcing industry has grown rapidly and entered a new stage of transformation. Through the analysis of the status quo and factors affecting the competitiveness of service outsourcing, Changsha is taken as a case to study the comprehensive competitiveness of Hunan’s service outsourcing industry in the context of digital economy, and based on the new diamond model, the influencing factors related to the competitiveness of the service outsourcing industry are analyzed and studied and the influencing factors of the competitiveness of service outsourcing are obtained, the countermeasures and suggestions for improving the competitiveness of service outsourcing in Hunan Province are put forward from five aspects: digital talents, improving the construction of digital infrastructure, strengthening the core competitiveness of enterprises, realizing the integration and development of service outsourcing in multiple fields, and giving play to the guiding role of the government.