The invention provides a method for evaluating a distributed scheduling operation risk. The method comprises the following steps: decomposing an operation order into multiple steps, obtaining operation states respectively included in various steps, obtaining multiple operation results formed by selecting one operation state from various steps, and further calculating the respective occurrence probabilities of various operation results; and determining current risk states of the operation order, calculating the consequence severity of the current risk states respectively corresponding to various operation results, obtaining risk values of the current risk states respectively corresponding to various operation results according to the consequence severity of the current risk states respectively corresponding to various operation results, the corresponding occurrence probabilities and a preset factor coefficient, and accumulating risk values of the current risk states respectively corresponding to various operation results, and taking the accumulated risk values as the output of the total risk value. By means of the invention, influence of the operation order distributed steps on the operation state of a power system can be considered; and influence of multiple factors on the practical scheduling operation risk is also considered.