How can I use adb over WiFi?

• Connect Android phone and host machine to same WiFi network
• Connect Android phone to host machine using USB cable (to start with)
• Run adb tcpip 5555 from a command prompt
• Run adb shell "ip addr show wlan0 | grep -e wlan0$ | cut -d\" \" -f 6 | cut -d/ -f 1" to obtain the phone's IP address
• Disconnect USB cable and run adb connect <ip_address>:5555

You can now view logcat output by running adb logcat or by viewing the Android Monitor tab within Android Studio.

You can adb over wifi using the app Wifi-ADB. The app requires superSU permissions hence the android phone you want to connect over WiFi must be rooted.

if you are using android studio.Just Download the plugin AndroidWifiADB for android studio.