In order to ensure stable, efficient, continuous and safe operation of digital gas field, proposed is the digital gas field operation and maintenance services system consisting of organization and management mode, institutionalized normative system and technology supporting system through learning the operation and maintenance experience from oil operating companies at home and abroad. According to the organization management mode and institutionalized normative system, adopted are some advanced technologies to establish main maintenance function including self-service station, automatic and centralized monitoring, visual process management, visual remote expert consultation, unified data management, realized is the organic integration of personnel, tools and processes and sequentially achieved is the aim of improving the operation efficiency and service quality.