Abstract: A UPS uninterruptible power supply mobile computer table structure comprises an inner tube pivotally mounted into an outer tube wherein a table panel and a wireless data-receiving monitor are respectively located at the upper section of the inner tube to work with a keyboard and a UPS system, and an ascending/descending device is mounted inside the bottom end of the outer tube and controlled by an ascending/descending button. The ascending/descending device has a transmission motor with a spiral-shaped rod to mesh with a driven gear of a threaded shaft screw-joined to a screw-threaded hole of an operational tube. A base panel attached to the upper end of the operational tube is secured to the inner tube. Therefore, the ascending/descending button is pressed to actuate the ascending/descending device spinning lineally upwards or downwards to adjust the position of the table panel and the monitor, providing more convenient and ergonomic design thereby.