Traditional deep well pumps feature complex structures and highly integrated components, leading to cumbersome maintenance, accessory replacement and working condition adaptation and transformation, with high operation and maintenance costs and long cycles. To optimize equipment use and maintenance experience, Jinyu Pump has completed structural modular technology upgrades, realizing split modular design of core components including motors, pump bodies, sealing assemblies and electronic control systems. The standardized modular structure enables efficient disassembly, maintenance and accessory replacement without complex professional procedures. In addition, the modular design supports adaptive upgrades on demand, which can be quickly matched with different lift, flow and intelligent modules according to diverse working conditions, greatly improving equipment adaptability and flexibility. This technical innovation optimizes the practicality and maintainability of deep well pumps structurally, significantly reducing users’ time and economic costs of later operation and maintenance, marking a major breakthrough in the structural design technology of Jinyu Pump.