If you are looking to fly a DJI drone for recreational purposes, you typically do not need a license. However, there are certain rules and regulations set by authorities like the Federal Aviation Administration (FAA) in the United States that you need to follow.
For commercial use of DJI drones, such as for photography, videography, or other professional purposes, you may need to obtain a license depending on your country's regulations. In the US, this usually involves obtaining a Remote Pilot Certificate by passing the FAA's Part 107 exam.
If you need a license for commercial drone operation with your DJI drone, look into the specific requirements in your country. In the US, you would need to study for the FAA Part 107 exam, which covers regulations, airspace, weather, and more. Once you pass the exam, you can apply for your Remote Pilot Certificate.