Building a harmonious socialist society reflects the inherent requirement of building a prosperous, democratic, civilized and harmonious modern socialist country. Strengthening medical and health services, and improving the level of people's health is one of the most important measures in constructing a socialist harmonious society of the CPC Central committee. Hospital is an important part of medical and health services. Hospital trade union is the bridge and link between the party and workers. Therefore, hospital trade union should give full play to its function and role, actively participate and promote the construction of harmonious hospital. The current hospital trade unions need positioned and explored under the present situation.