Current diesel-hydraulic/hydrodynamic drive systems for tamping and stabilizing vehicles suffer from high energy con-sumption,lagging torque response,low working efficiency,and inconvenient maintenance.This paper addresses these issues in the con-text of the DWL-32 continuous dual-sleeper tamping and stabilizing vehicle.It proposes a permanent magnet electric drive system solu-tion that innovatively introduces electric traction technology to achieve integrated high-and low-speed traction of the complete vehicle and high-precision working at constant low speeds.Firstly,requirements for various working conditions were decomposed and quanti-fied,and further calculations were conducted to derive traction/braking characteristics.Secondly,based on the traction and running char-acteristics,an electric drive system topology was built using permanent magnet electric drive technology,followed by the calculation and analysis for the electric drive system and the design of key components.Thirdly,for high-precision working at constant low speeds,the permanent magnet traction motor design was optimized,and the converter drive control mode was selected.Finally,key component pro-totypes developed for the electric drive system were tested on the bench and complete vehicle tests were carried out.Bench test results show that the electric drive system meets the temperature rise requirements during high-speed towing.Complete vehicle test results show that the designed electric drive system is rationally structured and delivers reliable performance that meets the requirements in complete vehicle traction as well as working and running conditions and achieves efficient response to control requirements at constant low speeds.Compared with the traditional technology route of hydraulic/hydrodynamic drive,the proposed solution improves working effi-ciency by 15%,providing strong support for the electrification upgrade and transformation of new-generation large-scale track mainte-nance machinery.