A catalytic converter warm-up control apparatus for a hybrid vehicle includes a catalytic converter warm-up controller, a temperature parameter acquisition device, a warm-up control parameter setting device, and a motoring execution device. The catalytic converter warm-up controller is configured to execute warm-up control to warm up a catalytic converter of the hybrid vehicle for activating the catalytic converter upon start-up of an internal combustion engine provided in the hybrid vehicle. The warm-up control parameter setting device is configured to set warm-up control parameters used in the warm-up control in accordance with the temperature parameter acquired by the temperature parameter acquisition device. The motoring execution device is configured to execute motoring of the internal combustion engine by a first electric motor in a predetermined operation state. The catalytic converter warm-up controller is configured to execute the warm-up control in accordance with an execution state of the motoring.