The invention discloses an implementation method of hybrid AC/DC distribution network protection, which comprises a central unit and a plurality of local units communicated with the central unit. Theimplementation method comprises the following steps: each local unit adds a time mark to analog sampling data and then sends the analog sampling data to the central unit with switching values, event information and tripping information together, and the central unit determines a fault point of a hybrid AC/DC distribution network according to the received data, and feeds back the tripping information and latching information to an associated local unit according to the fault type of the fault point so as to implement fault isolation of the associated local unit. The implementation method provided by the invention can keep the stable operation of an AC/DC system to the greatest extent, guarantees the normal power supply of non-fault regions in an AC/DC hybrid system, and reduces the power failure time and the low-voltage running time of a user so as to have very high application value.