A processing rule modification apparatus, wherein the modification apparatus stores a first processing rule, wherein the first processing rule comprises rule description information and an instruction set, the rule description information is used to identify the first processing rule, the instruction set comprises at least one action instruction, the instruction set is used to instruct to perform, according to the action instruction in the instruction set, processing on a data packet corresponding to the first processing rule, and the apparatus comprises: a transceiver, configured to receive rule modification information sent by a controller, wherein the rule modification information comprises rule description match information and action instruction modification information, wherein the rule description match information is used to determine a to-be-modified processing rule, rule description information of the to-be-modified processing rule accords with the rule description match information, and the action instruction modification information is used to instruct to modify an action instruction specified in an instruction set of the to-be-modified processing rule; and a processor, configured to: when it is determined that the rule description information of the first processing rule accords with the rule description match information, modify an action instruction specified in the instruction set of the first processing rule according to the action instruction modification information, the processing rule modification apparatus being characterized by that: the action instruction modification information comprises an action instruction match condition and modification operation information, wherein the action instruction match condition is used to determine a to-be-modified action instruction, and the modification operation information is used to indicate a modification operation on the to-be-modified action instruction; and the processor is configured to: when it is determined that the rule description information of the first processing rule accords with the rule description match information, determine a first action instruction to be modified in the instruction set of the first processing rule according to the action instruction match condition; and modify the first action instruction according to the modification operation information. a transceiver, configured to receive rule modification information sent by a controller, wherein the rule modification information comprises rule description match information and action instruction modification information, wherein the rule description match information is used to determine a to-be-modified processing rule, rule description information of the to-be-modified processing rule accords with the rule description match information, and the action instruction modification information is used to instruct to modify an action instruction specified in an instruction set of the to-be-modified processing rule; and a processor, configured to: when it is determined that the rule description information of the first processing rule accords with the rule description match information, modify an action instruction specified in the instruction set of the first processing rule according to the action instruction modification information, the processing rule modification apparatus being characterized by that: the action instruction modification information comprises an action instruction match condition and modification operation information, wherein the action instruction match condition is used to determine a to-be-modified action instruction, and the modification operation information is used to indicate a modification operation on the to-be-modified action instruction; and the processor is configured to: when it is determined that the rule description information of the first processing rule accords with the rule description match information, determine a first action instruction to be modified in the instruction set of the first processing rule according to the action instruction match condition; and modify the first action instruction according to the modification operation information. the action instruction modification information comprises an action instruction match condition and modification operation information, wherein the action instruction match condition is used to determine a to-be-modified action instruction, and the modification operation information is used to indicate a modification operation on the to-be-modified action instruction; and the processor is configured to: when it is determined that the rule description information of the first processing rule accords with the rule description match information, determine a first action instruction to be modified in the instruction set of the first processing rule according to the action instruction match condition; and modify the first action instruction according to the modification operation information. when it is determined that the rule description information of the first processing rule accords with the rule description match information, determine a first action instruction to be modified in the instruction set of the first processing rule according to the action instruction match condition; and modify the first action instruction according to the modification operation information.