Abstract: To assess the values of ecosystem services provided by peat swamp habitats, four typical peat swamp ecosystems (Phyllostachys heteroclada peat swamp, Palhinhaea cernua peat swamp, Juncus effusus peat swamp, and Sphagnum magellanicum peat swamp) were selected in the Tianbaoyan National Nature Reserve (TNNR) in Fujian Province. Using the emergy theory, an evaluation system for the peat swamp ecosystem service values was established, and the service values of the different types of peat swamp ecosystems in TNNR were assessed. The results show that: (1) The total emergy of peat swamp ecosystem services in TNNR was 1.01×10¹⁹ sej·a^-1, with a macroeconomic value of 9.99×10⁶ yuan·a^-1. The direct service emergy value was 5.45×10¹⁷ sej·a^-1, worth 5.36×10⁵ yuan·a^-1; the indirect service emergy value was 2.73×10¹⁸ sej·a^-1, worth 2.69×10⁶ yuan·a^-1; the existing service emergy value was 6.86×10¹⁸ sej·a^-1, worth 6.76×10⁶ yuan·a^-1. (2) The order of peat swamp ecosystem service value per unit area was Sphagnum magellanicum peat swamp > Juncus effusus peat swamp > Palhinhaea cernua peat swamp > Phyllostachys heteroclada peat swamp. (3) The order of the value of each service function was culture & research (60.28%) > water purification (27.03%) > biodiversity maintenance (6.65%) > biomass increase (4.27%) > NPP increase (0.81%) > water conservation (0.74%) > peat storage (0.39%) > carbon fixation and oxygen release (0.16%). These findings provide theoretical support for the ecological compensation and differentiated protection of peat swamp wetlands.