The invention provides a method for efficiently realizing switching control of a QSFP module low power consumption mode. The method includes the steps of: S1. performing electrification, and performing initialized setting on a QSFP module; S2. performing overshoot protection processing on a low power consumption mode pin of the QSFP module; S3. receiving and judging an interrupt signal of the low power consumption mode pin, and when the interrupt signal of the low power consumption mode pin triggers to enter a low power consumption mode, setting a triggering level that triggers to enter a normal mode; and S4. executing turn-off action in an interrupt signal response process. The method provided by the invention can set a completely standard LVTTL level, and in addition, can also effectively prevent vibration under the condition of a relatively small overshoot, on this basis, interruption setting and judgment are performed, low power consumption mode switching of the QSFP module can be handled conveniently, rapidly and efficiently, and an MSA protocol of QSFP 40G and 100G in the QSFP module can be satisfied.