The invention discloses a multi-stability problem matrix type quantification index calculation and AC-DC coordination control method, and belongs to the power system and automation technical filed; the multi-stability problem matrix type quantification evaluation index and method based on transient kinetic energy improvement and perturbation sensitivity can fully consider single stability and integral stability control effect, control negative effect and overshoot control; the method uses a multi-stability problem influence factor matrix to evaluate the stability-problem dynamic improvement effect in a control measure application process, considers target functions with the smallest control cost and the biggest multi-stability problem weight index, thus determining the best AC-DC emergency control strategy, and improving the adaptability of the emergency control algorithm processing complex stability conditions. The method allows power system operation personnel to handle complex system internal running rules, and provides basis for coordinating and making the transient stability emergency control strategy, thus improving the system safety stability control validity and online automation calculating level.