In the maintenance work before, need to understand the desktop LED dispensing machine parts which need maintenance, after the accurate target, can carry out maintenance work on the target, some parts need not be cleaned, some need to work a no need cleaning, for example: dispensing needles, rubber tube, and dispensing valve pipe etc, they need to complete each work or replace the rubber, the need for a glue cleaning work, this will not cause problems in desktop dispensing machine, mechanical arm, guide, dispensing substrate, these parts can be an interval for cleaning work. The daily maintenance work is on the glue dispensing machine in the cleaning, residual internal glue will cause blockage, will not only waste parts, but also affect the progress of the work, so every day for business losses will be relatively large, to the end of corporate profits will be reduced.