A wireless network device with a communication assembly, which is rotatable for better signal strength, includes a power supply module and the communication assembly. The communication assembly is powered by the power supply module. The power supply module includes a base and a first electrode unit. The first electrode unit is positioned in the base. The first electrode unit partially extends out of the base. The communication assembly includes a case and a second electrode unit. The second electrode unit is positioned in the case. The second electrode unit partially extends out of the case towards the first electrode unit. The case is detachably installed on the base. The case can be rotated relative to the base. The second electrode unit is electrically connected to the first electrode unit.