The invention discloses an intelligent road construction device which can be precisely adjusted, A support bar is connected to that support bar, Pusher, dust box, moving wheel, A low end of that connecting support rod is weld to the upper surface of the construction main machine, An upper end of the connection support rod is welded with a push hand, A dust collector is fixedly installed on the right side surface of the construction main machine, At that low end of the dust collector, the moving wheel is arrange to make the main transmission mechanism work through the opening of the power mechanism, This is the sweeping mechanism that sweeps the pavement, sweep away sharp objects, Then, the dust is polished by a polishing mechanism, the polishing process is damaged, and the dust generated during the polishing is sucked into a dust collecting box through a driving mechanism to be processed centrally so as to prevent the dust from floating everywhere, and the dust sucking mechanism is driven to move by a moving mechanism, so that the dust sucking mechanism is omni-directionally sucked, and the dust sucking effect is better.