The invention discloses an automatic saw-cutting and packaging method for a long ingot in an intelligent production line. The automatic saw-cutting and packaging method comprises the following steps: sequentially conveying a circular cast ingot to a saw-cutting main machine from a casting well, an alignment table, a pushing-arranging ingot storage machine, a translation taking machine and a feeding roll way conveying machine; carrying out material head saw-cutting treatment on the circular cast ingot; carrying out fixed-length treatment on the circular cast ingot subjected to the material head saw-cutting treatment; and carrying out material tail saw-cutting treatment on the circular cast ingot subjected to the fixed-length treatment, wherein the circular cast ingot subjected to the material tail saw-cutting treatment is the long ingot. With the adoption of the automatic saw-cutting and packaging method disclosed by the invention, human participation is not needed, and the automatic saw-cutting and packaging method is high in saw-cutting quality, low in labor cost, stable in homogenization quality, safe and reliable, and high in production efficiency.