This invention relates to a wearable device and its manufacturing method, belonging to a smart wear technical field. The wearable device comprises: a front case (110), a bottom case (130) and electronic components (150)； the front case (110) is joined to the bottom case (130) in an up-and-down direction, and the front case (110) and the bottom case (130) together enclose a space forming a waterproof cavity； the electronic components (150) are disposed in the cavity； the electronic components (150) comprise a printed circuit board (PCB) (151) and a battery (152), which are electrically connected, and the PCB (151) is provided with a wireless data transceiving assembly and at least one type of sensor.
