A switch circuitry corresponds with a plurality of antennae. The switch circuitry includes a first switch module, a second switch module, and a third switch module. In this case, the first switch module, the second switch module, and the third switch module have a plurality of control leads, a plurality of signal leads, and a plurality of antenna leads respectively. The third switch module further has a plurality of transmission leads. Each signal lead connects with corresponding one of the antenna leads. In addition, an access point including the switch circuitry is provided.