As a bridge between plants and soil, mycorrhizal play a crucial role in regulating the balance of soil carbon (C) pools. Mycorrhizae, by absorbing mineral nutrients from the soil in exchange for C fixed by plant photosynthesis, also contribute to soil C loss through respiration.S The role of mycorrhizal in soil carbon input, carbon stability, and carbon sequestration is well understood; however, knowledge of the effects of mycorrhizal on soil respiration is relatively limited. A review of the effects of mycorrhizal on soil respiration and their regulatory factors is presented. Using the mesh exclusion method, researchers have successfully isolated and quantified mycorrhizal respiration, and found that it accounted for an average of 16.8% of soil respiration. Specifically, arbuscular mycorrhizal respiration and ectomycorrhizal respiration contribute 18.4% (2.5%-32.0%) and 15.1% (3.0%-62.1%) to soil respiration, respectively. Inoculated mycorrhizal plants increased soil respiration by an average of 26.0% compared to mycorrhizal-free plants. The response of mycorrhizal respiration to soil temperature and soil moisture varied in different ecosystems, with mycorrhizal respiration appearing to be more sensitive to changes in soil moisture. Soil nutrient availability regulates the symbiotic relationship between mycorrhizal fungi and plants by affecting the nutrient acquisition strategies of plants, and then regulates mycorrhizal respiration. Biological factors such as fine root biomass, extraradical hyphal length density, and plant-supplied substrates also significantly influence mycorrhizal respiration. As an important component of both soil respiration and autotrophic respiration, mycorrhizal respiration contributes substantially to soil C loss, which cannot be overlooked. More precise methods are needed to isolate and quantify mycorrhizal respiration to accurately assess the dynamics of soil carbon cycling and provide scientific insights for global C management and climate change mitigation.