An electronic control lock of a bicycle comprising: an electronic controller; and a kickstand lock including a kickstand being rotatable and having a flip-down state and a kicked-up state; and a stand control device being in signal connection with the electronic controller, controlled by the electronic controller, having a stand locking state and a stand unlocking state, and including a stand engaging element, a stand resilient element and a stand operating element, wherein the stand resilient element tends to force the stand engaging element to engage with the kickstand, so as to stop the kickstand from rotating; and the stand operating element is in signal connection with the electronic controller and is controlled by the electronic controller; wherein in the stand locking state, the stand operating element stops the stand engaging element from disengaging with the kickstand, thereby the stand control device stops the kickstand that is in the flip-down state from being rotated to the kicked-up state; and wherein in the stand unlocking state, the stand operating element allows the stand engaging element to disengage with the kickstand, thereby the kickstand is rotatable to the flip-down state and the kicked-up state; and the stand operating element includes a stand rotating device and a stand rotating seat, wherein the stand rotating device is in signal connection with the electronic controller, is controlled by the electronic controller, and selectively rotates the stand rotating seat; characterized in that at least one stand protrusion and at least one stand recess are formed on the stand rotating seat and are arranged annularly; when in the stand locking state, the stand rotating device rotates the stand rotating seat to make the at least one stand protrusion abut against the stand engaging element, so as to stop the stand engaging element from disengaging from kickstand; and when in the stand unlocking state, the stand rotating device rotates the stand rotating seat to make the at least one stand recess corresponds in position to the stand engaging element, so as to allow the stand engaging element to move toward the at least one stand recess and to disengage from the kickstand. an electronic controller; and a kickstand lock including a kickstand being rotatable and having a flip-down state and a kicked-up state; and a stand control device being in signal connection with the electronic controller, controlled by the electronic controller, having a stand locking state and a stand unlocking state, and including a stand engaging element, a stand resilient element and a stand operating element, wherein the stand resilient element tends to force the stand engaging element to engage with the kickstand, so as to stop the kickstand from rotating; and the stand operating element is in signal connection with the electronic controller and is controlled by the electronic controller; a kickstand being rotatable and having a flip-down state and a kicked-up state; and a stand control device being in signal connection with the electronic controller, controlled by the electronic controller, having a stand locking state and a stand unlocking state, and including a stand engaging element, a stand resilient element and a stand operating element, wherein the stand resilient element tends to force the stand engaging element to engage with the kickstand, so as to stop the kickstand from rotating; and the stand operating element is in signal connection with the electronic controller and is controlled by the electronic controller; wherein in the stand locking state, the stand operating element stops the stand engaging element from disengaging with the kickstand, thereby the stand control device stops the kickstand that is in the flip-down state from being rotated to the kicked-up state; and wherein in the stand unlocking state, the stand operating element allows the stand engaging element to disengage with the kickstand, thereby the kickstand is rotatable to the flip-down state and the kicked-up state; and the stand operating element includes a stand rotating device and a stand rotating seat, wherein the stand rotating device is in signal connection with the electronic controller, is controlled by the electronic controller, and selectively rotates the stand rotating seat; characterized in that at least one stand protrusion and at least one stand recess are formed on the stand rotating seat and are arranged annularly; the stand operating element includes a stand rotating device and a stand rotating seat, wherein the stand rotating device is in signal connection with the electronic controller, is controlled by the electronic controller, and selectively rotates the stand rotating seat; characterized in that at least one stand protrusion and at least one stand recess are formed on the stand rotating seat and are arranged annularly; when in the stand locking state, the stand rotating device rotates the stand rotating seat to make the at least one stand protrusion abut against the stand engaging element, so as to stop the stand engaging element from disengaging from kickstand; and when in the stand unlocking state, the stand rotating device rotates the stand rotating seat to make the at least one stand recess corresponds in position to the stand engaging element, so as to allow the stand engaging element to move toward the at least one stand recess and to disengage from the kickstand.