The invention provides an H infty load frequency control method based on a buffer type event triggering scheme for a power system under spoofing attack. The H infty load frequency control method includes the steps: S1, analyzing a load frequency control problem of a power system secondary frequency conversion and primary frequency conversion involving an electric vehicle, and establishing a stateequation of a system model; S2, designing a buffer type event triggering mechanism, establishing a controller under a delay condition, and establishing a network system model state equation of the presence controller according to S1; S3, designing the conditions of occurrence of the spoofing attack, and establishing a state equation of the network control system model according to S2; and S4, calculating the sufficient condition for near-stability of mean square for the network control system in S3, and implementing system load frequency control. In the same network environment and under the same spoofing attack, compared with a traditional method, the H infty load frequency control method based on a buffer type event triggering scheme for a power system under spoofing attack can help thesystem resist stronger spoofing attack, has the advantages of low overshoot and short stable time, and can obtain better control effect.