Abstract: The application of integrated technology is the trend for flue gas pollutants removal in coal-fired power plants. With the simple process as its feature, the solid adsorbents are studied extensively in the integrated pollutants removal technology. Some adsorbents, such as, the carbon-based adsorbents, the calcium-based adsorbents and the CuO/γ-Al₂O₃, which may have good application prospect in the SO₂, NO_x and mercury integrated removal, are reviewed in this paper. The removal mechanisms, research status, application prospect and existing problems for each type of adsorbents are analyzed and summarized. It shows that the mutual influence and interaction mechanism between the different pollutants are still not clear. The future work should focus on the reduction of the adsorbents' cost , the improvement of the by-product utility value, the improvement of the denitrification efficiency and the strengthening of the mercury removal research. Finally, the perspective of the SO₂, NO_x and mercury integrated removal technology by using solid adsorbents is presented to show its significant importance to the pollutants reduction in coal-fired power plants.