Early in the Edo era, while the development of new rice fields was progressing, as the largest rice port in this rich rice-production area, Ishinomaki was developed as “the largest rice collecting port in Oshu,” a trading city known nationwide. The Rias coastal area had abundant fishery resources, so coastal fisheries were prosperous and remote area trade was conducted. The area had tremendous success as a shipping and navigation base.
After that, it flourished as a landing base for the North Sea fishery, but due to the arrival of the 200 nautical era, it has changed from an ocean fishery to an offshore fishery and aquaculture. However, to diversify and stabilize the industries, it was urgent to develop an industrial infrastructure. For this reason, the development of an expressway, relocation of the fish market, improvement of the fishery processing complex, industrial attractions and so on were developed. The new Ishinomaki industrial port also opened in 1964 and developed as an industrial city.