An intelligent device for conveying, grading and aligning of tube products includes: a conveying and grading mechanism, which includes: a timing belt, a timing belt power unit, a swing rod, a track, and a swing rod cylinder; wherein multiple baffles are evenly arranged on a surface of the timing belt; multiple track openings are evenly arranged on a surface of the track; the swing rod cylinder is fixed on a side wall of the track; the swing rod is fixed with an output end of the swing rod cylinder; and multiple single-bundle aligning assemblies, each includes: a cross beam, a vertical beam, a stacking unit, a bracket cylinder, a bracket, an aligning cylinder, and a swing bracket; wherein the bracket is fixed with a telescopic end of the bracket cylinder; the stacking unit is fixed on a surface of the vertical beam along a height direction thereof.