The present disclosure relates to method and apparatus for waking up a wearable device. The method includes: determining, based on a detected voice signal, whether the voice signal is from a wearer of the wearable device; determining, based on the voice signal, whether the voice signal belongs to a conversation between the wearer and the wearable device with a speech classification model; and waking up the wearable device when the voice signal is from the wearer and the voice signal belongs to the conversation between the wearer and the wearable device. The method and apparatus can wake up the wearable device during a normal interaction process between the wearer and the wearable device by using the method and apparatus, thereby realizing a natural wake-up process and improving the user experience of the wearable device.