Abstract: The present invention discloses an adjustable bracket compliant with VESA mount of a display for securing input device, which comprises: a first arm plate configured for associating with a securing structure of VESA mount of a display, and having a first sliding structure configured for left and right sliding of a second arm plate; the second arm plate having a second sliding structure which is assembled with the first sliding structure, such that the second arm plate can slide left and right in the first arm plate after assembly, and a third sliding structure configured for back and forth sliding of a input device securing plate; a input device securing plate is configured for mounting an input device, and having the fourth sliding structure which is assembled with the third sliding structure, such that the input device securing plate can slide back and forth in the second arm plate after assembly.