Wireless network is a network which do not use cable, replacing cable with radio as medium to transfer data. Wireless network can give freedom to users to use network service, anywhere in the area of wireless network (Hotspot). There are five steps to design a wireless network: determine requirement of network coverage, requirement of speed, requirement of network facility. Afterwards the step is to determine location of hotspots. Third we will use and start to install router or access point according to the plan. Fourth is to configure wireless devices. And the last step is to test the wireless network. Finally, wireless network is available which make user can use network service of wireless network anywhere in the hotpots of existing Network.