The establishment of the SCO is a major event in international relations at the beginning of the 21st century and a product of China’s exploration with its neighbors of a new security model，a new type of state-to-state relations and a new model of regional cooperation. The establishment of the SCO is in line with the trend of world development and the fundamental interests of the SCO member states. The smooth development of the SCO will bring China-Russia relations closer，and the close relationship between China and Russia will push forward the SCO，which complement each other. In the face of the severe global spread of the COVID-19 pandemic，the SCO has played an important role in jointly combating the pandemic，driven by China and Russia. The future development of the SCO needs to dig deep into the potential of cooperation and promote regional economic recovery and prosperity in the post-pandemic era. The SCO has made great achievements in the past two decades and faces difficulties and challenges. No matter how the international situation changes，the SCO，with the concerted efforts of its member states，will achieve greater achievements in regional stability and development by maintaining multilateralism，building consensus of the times and advancing with the times.