The invention discloses a method for verifying the operating condition judgment result of a pump storage group by adopting a sequence control process. The method comprises the following steps: (1) creating sequence control process information tables including an operating condition conversion sequence table and an operating condition duration table; (2) judging the current operating condition of the group based on a monitoring system signal and a switch position contact; (3) if the operating condition is changed, performing verification: 1) viewing the probability that the operating condition is directly converted according to the corresponding sequence based on the operating condition conversion sequence table; 2) if the last operating condition is abnormally suspended by a protection action or a mandatory order of a monitoring system, omitting the verification, otherwise, checking whether the duration of the last operating condition is within a reasonable range based on the operating condition duration table; and (4) if the operating condition is not changed, checking whether the duration of the current operating condition exceeds the maximum possible time based on the operating condition duration table. The method can solve the problem of operating condition misjudgment caused by single contact circuit faults.