Manufacturing method of electronic product and electronic product

The invention discloses a manufacturing method of an electronic product and the electronic product. The electronic product comprises a PCB and a USB Type-C connector, the USB Type-C connector is connected with a high-speed signal line DP and a high-speed signal line DM, the high-speed signal line DP is provided with a first disconnection end and a second disconnection end, and the high-speed signal line DM is provided with a third disconnection end and a fourth disconnection end; the manufacturing method comprises the following steps: detecting whether common-mode interference exists in the electronic product, and if the common-mode interference exists, arranging a common-mode inductor between the high-speed signal line DP and the high-speed signal line DM; and if the common-mode interference does not exist, a resistor R1 is connected between the first disconnection end and the second disconnection end, and a resistor R2 is connected between the third disconnection end and the fourth disconnection end. For an