The invention discloses a sequence control method of an intelligent substation protection device based on an operation task, which comprises the following steps: presetting corresponding operation task under each sequence control operation application scene and the sequence control operation corresponding to the operation task; selecting a sequential operation application scenario, automatically executing an operation task under the sequential operation application scenario and a sequential operation corresponding to the operation task; after the sequential control operation is finished, automatically obtaining the actual throw-back state of a group of soft platens corresponding to the protection device; comparing the actual throw-back state with the throw-back state of the group of soft platens of the preset target throw-back state of the protection device. According to the invention, the corresponding sequential control operation can be automatically executed based on the operation task, thereby completing the automatic execution of the automatic-back and the safety measures of the protection device; there is no need for operation or maintenance personnel to select the specific process of sequential control operation.