A matching method between a wearable smart device and a terminal is disclosed, in which the wearable smart device is disposed with a plurality of LEDs. The matching method includes: the terminal triggering the designated wearable smart device to generate an emitting status for each of the LEDs; and the terminal displaying an interactive interface for a user to input the emitting status of each of the LEDs, in which when the emitting status of each of the LEDs inputted by the user is the same as the emitting status of each of the LEDs triggered by the terminal, a communication connection is established between the terminal and the designated wearable smart device. A matching system is disclosed herein as well.