The invention discloses an electronic parking mechanism of a double-clutch speed changer. The electronic parking mechanism comprises a parking pawl and a parking ratchet wheel. The parking pawl is controlled by a parking shifting fork assembly to be selectively meshed with the parking ratchet wheel, and the parking shifting fork assembly is controlled by a gear shifting executing mechanism of the speed changer. The gear shifting executing mechanism comprises a driving motor, a transmission mechanism, a shifting finger and a gear shifting fork assembly. The parking shifting fork assembly and the gear shifting fork assembly are sequentially arranged on the shifting finger in a sleeved mode and are controlled by the gear shifting executing mechanism. A parking control system is integrated on a speed changer gear shifting system, a gear shifting control system is effectively utilized, an individual parking driving motor and a transmission mechanism are omitted, the space needed by the speed changer is decreased, and the speed changer can be better arranged.