A wiring device and an air conditioner. The wiring device comprises a joint (10) and a joint connector (20). The joint (10) is fixedly connected to the joint connector (20). The joint (10) comprises at least one strong current module (101) and at least one weak current module (102). The strong current module (101) is suitable for being connected to a strong current load, and the weak current module (102) is suitable for being connected to a weak current load. The joint connector (20) is provided with at least two plug-in slots (207) for plugging the strong current module (101) and the weak current module (102). The wiring device is provided with the strong current module (101) and the weak current module (102) which are independently arranged, strong current wiring and weak current wiring are separated, and the anti-electromagnetic interference capability of the circuit is enhanced.