The invention discloses a installation mechanism of a camera for an unmanned aerial vehicle. Unmanned aerial vehicle shell, the top of an inner cavity of the unmanned aerial vehicle shell is slidablyconnected with a sliding plate through first sliding rails. The top of the sliding plate penetrates through the unmanned aerial vehicle shell and extends to the top of the unmanned aerial vehicle shell; a connecting plate is fixedly connected to the top of the sliding plate, a camera is fixedly connected to the top of the connecting plate through a fixing plate, a power box and a T-shaped plate are fixedly connected to the positions, located on the two sides of the camera, of the top of the connecting plate correspondingly, and a clamping box is fixedly connected to the position, located on the right side of the T-shaped plate, of the top of the connecting plate. According to the installation mechanism of the camera for the unmanned aerial vehicle, a good installation and disinstallation effect can be achieved through an integrated structure, the operation is simple and easy, the installation is simple, the disinstallation and maintenance speed is improved, the use by a user is convenient, the practicability is good, the time and labor are saved, and the development trend of the current market is met.