Guide roller set of forklift door rack

The invention provides a guide roller set of a forklift door rack. The guide roller set comprises main rollers and side rollers, wherein one side of the main roller is provided with a main roller shaft connected with a door rack steel channel; the side roller is embedded into a center hole formed in the other side of the main roller; two ends of a center shaft of the side roller are clamped into the inner wall of the center hole of the main roller; a bolt hole communicated with the center shaft of the side roller is formed in the main roller shaft; an adjusting bolt adjusting a gap between the side roller and the door rack steel channel is disposed in the bolt hole; and a left-rotating bolt can be adjusted at the external side of the door rack steel channel to adjust the gap between the side roller and the door rack steel channel, so door rack repeated assembling and disassembling can be avoided; installation space of the roller on the door rack steel channel can be unnecessary; and the gap between the upper and lower roller sets of the internal and external steel channels can be increased relatively, so roller stress is reduced.