Submersible pumps play an indispensable role in various fields, including agricultural irrigation, industrial water supply, residential drainage, and wastewater treatment. As the core component of submersible pumps, the motor’s material directly determines the pump’s performance, efficiency, service life, and overall operational cost. Among the common motor winding materials, copper and aluminum are the two most widely used options. While both can drive submersible pumps to complete liquid transportation tasks, their inherent physical, electrical, and mechanical properties lead to significant differences in practical application. This article comprehensively compares copper motors and aluminum motors for submersible pumps from multiple dimensions, helping users make rational choices based on their actual needs.