The aim of this thesis is to analyze the gas trade relationship between Russia and China. China is heavily dependent on oil and gas imports and this dependence is expected to increase in the coming decades. As China's national oil companies attempt to raise domestic natural gas production with limited success, greater dependence on gas imports is almost inevitable, whether through pipelines from neighboring countries or by liquefied natural gas from distant suppliers. On the other hand, since 2017, Russia has the largest natural gas reserves in the world and is a major energy factor in the global gas market. However, this situation makes Russia more dependent on energy exports. Natural resources account for about 80% of Russia's exports, and oil and gas account for 55% of total exports, making the budget largely dependent on the energy sector. Russia's relationship with China has a long and complex history, catalyzed by the longstanding border between the two countries, the complementarity of their economies and the ambition to see themselves as key global geopolitical players. You can read more about the natural gas trade relationship between China and Russia in the continuation of this thesis.