The present invention belongs to the field of control technology, particularly relates to a wearable touch device and a wearable touch method. A wearable touch device comprises a carrier, a projecting unit, a monitoring unit and a processing unit. The carrier is wearable, the projecting unit is used for projecting to a touch surface capable of being touched by a touch end, the monitoring unit is used for monitoring contact information between the touch end and the touch surface and sending the contact information to the processing unit, and the processing unit is used for processing the contact information to judge whether the touch end effectively contacts the touch surface. The wearable touch device and the corresponding wearable touch method can ensure the touch effectiveness.