The invention discloses a universal device for the ball mounting of a ball grid array device. The ball mounting device has high practicability and good universality and is flexible and convenient in operation. According to the technical schemes of the invention, the ball mounting pool of the inner cavity frame of a ball mounting table is provided with a lifting supporting block for driving a ballgrid array device substrate to synchronously ascend/descend, main clamping sliding blocks sliding along sliding grooves in two sides of the length direction of the opening of the frame, and auxiliaryclamping sliding blocks sliding along wide-edge suspension girder sliding rails; the two main clamping sliding blocks transversely move synchronously in the same direction or in opposite directions through a transverse relative linkage mechanism which is connected with a transverse adjustment knob and is located below the two main clamping sliding blocks; and the two auxiliary clamping sliding blocks transversely move synchronously in the same direction or in opposite directions through a longitudinal relative linkage mechanism which is connected with a longitudinal adjusting knob and is located below the two auxiliary clamping sliding blocks; solder balls fall onto the pin bonding pads of the ball grid array device substrate through the leakage holes of a solder ball leakage net; the number of the solder balls falling onto the pin bonding pads of the ball grid array device substrate through the leakage holes during ball mounting is controlled, so that the falling mounting of the solder balls of ball grid array devices with different quantities of solder balls can be realized.