The global agricultural machinery market is recovering in 2026,with growing import demand. Combining Zhongshitong's 20 years of practical operation experience at Shanghai Port,this article analyzes the four core links of agricultural machinery parts import agency: customs valuation,HS code classification,animal and plant quarantine,and license processing. It reveals tariff disputes caused by classification errors through the case of Mr. Jiang,provides interpretation of 2026 anti-dumping policies and a guide to avoiding demurrage charges,helping enterprises introduce high-quality agricultural machinery parts from around the world safely and efficiently.