The invention discloses an adjustable surgical tray used for oral surgery. The adjustable surgical tray comprises universal wheels and a surgical tray shell, a bottom plate is installed above the universal wheels, a pedal is connected with the upper side of the bottom plate, a rise button is arranged on the right side on the upper portion of the pedal, and a descending button is installed on the left side of the rise button. A jack is arranged on the upper portion of the pedal, the upper portion of the jack is connected with a fixing rod, a telescoping rod is arranged on the upper portion of the fixing rod, a limiting rod is installed on the left side of the telescoping rod, and the lower portion of the limiting rod is fixedly provided with hooks. By arranging the universal wheels and thebottom plate, the four universal wheels are uniformly distributed on the lower portion of the base plate, and the universal wheels are located at the four end points of the bottom plate respectively;the universal wheels can rotate, so that the surgical tray is driven to move, the surgical tray can move through the universal wheels, and the problem that an existing surgical tray is inconvenient toconvey or move is solved.