Oil-gas self-healing cement slurry technology is an innovative cement slurry solution, which aims to solve the problems of micro-cracks and channels in cement ring or interface. In this technology, when the self-healing agent meets hydrocarbon fluids such as water, oil, gas, etc., it automatically flows to the gaps or micro-cracks to fill and reinforce, thus forming a seal, thus preventing the fluid passage and avoiding the occurrence of annular pressure problems.