The invention discloses a post-pressurization capacity evaluation method based on microseism interpretation results in the technical field of microseisms. The evaluation method comprises the followingsteps that microseism event information is monitored in real time through a plurality of detector arrays; the microseism event information is detected in real time; according to a microseism detection result, a discrete fracture network model is established by combining geological information and wellhead pressure monitoring information; the post-pressurization capacity is evaluated according tothe discrete fracture network model. The method can greatly improve the detection capability of weak earthquake events, not only can evaluate the fracturing effect, but also can feed back the real-time monitoring result to hydraulic fracturing construction to achieve the optimal fracturing effect at lower cost.