As one of the main types of terrestrial ecosystems,grasslands ecosystem plays an important role in global carbon cycle.Soil respiration is the process of undisturbed soil producing CO_2 as a result of metabolic activities.Ecosystem respiration includes underground soil respiration and autotrophic respiration of aboveground vegetation.Grasslands soil respiration and ecosystem respiration are important parts of terrestrial ecosystem carbon cycle.Researches on the effects of warming and grazing on soil and ecosystem respirations in grasslands can provide important scientific basis for predicting global carbon budget under future climate change conditions and sustainable operation and management of grasslands.This article briefly reviewed these studies and found that there were no consistent results about the response of soil and ecosystem respirations in grasslands to warming and grazing,which vary with warming methods,warming time and grazing intensity,frequency and the types of grassland.Based on our results,we pointed out the research fields that should be strengthened in the future.Grazing is one of the most important utilization modes of grasslands,and for the grasslands under climate change conditions in the future,the two factors,warming and grazing,will have effects on grassland soil and ecosystem respiration simultaneously.However,most experiments before were independent study on the influence of warming or grazing,therefore,interactive effects between warming and grazing on soil and ecosystem respirations in grasslands should be performed because they are non-additive effects of warming and grazing on them.Meanwhile,it is necessary to strengthen the study on the response of different components of the ecosystem respiration to warming and grazing,thus understanding the influential mechanism of the two better.In addition,the response of soil and ecosystem respiration to warming and grazing will change with time,so long-term continuous observations are necessary.