"The Craftsman" is a time-travel technology epic. Modern mechanic Chen Mo crashed his plane and fell into poverty. He used his remaining technology and ingenuity to renovate plows and build waterwheels in Qinghe Village to save people from famine and establish "Tiangongfang". Technology was like a spark that started a prairie fire. Deep plows, water-powered forging hammers, threshing machines, and looms were invented one after another. The grain was abundant and cloth was abundant, but it offended the squire Li Shoutian and even alarmed the court. The conservatives denounced "strange and obscene skills", the reformists wanted to take advantage of them, the minister of the Ministry of Industry set up a trap, and bandits and border troubles took advantage of the situation. Chen Mo used rulers and compasses as his sword and gunpowder as his shield. He led the village team to fight in prefectures and counties, diverted water to make iron, and his cloth workshop was like a chess piece. Finally, he won the seal of "will be a great craftsman" among the wind and thunder. In the final chapter, he mobilized thousands of craftsmen to open rivers, build new cities, ward off plagues, and secure borders, so that there would be no hunger or cold in the world, and the craftsmen would go to temples. When the new capital was completed, with streets crisscrossing the streets and the sound of machines, Chen Mo held an ancient steel ruler in his hand and overlooked the mountains and rivers - technology was the plow, ingenuity was the seed, and a peaceful and prosperous era took root from then on.