This study presents a novel method for fabricating lightweight and drift-free millirobots using asymmetric laser-induced graphene (LIG). By introducing asymmetric light pattern distortion to the laser-induced polymer-to-graphene conversion process, the researchers achieved the spontaneous twisting and peeling of graphene sheets from a polymer substrate. The resulting millirobots, coated with nickel and driven magnetically, exhibit rapid locomotion, excellent trajectory tracking, and precise drug delivery capabilities. The fabrication process is highly scalable, with a speed of 77 scaffolds per second, making it suitable for high-throughput and large-scale production. The millirobots are designed to remain fully suspended in liquid environments, reducing lateral drift and improving their performance. The study demonstrates the potential of these graphene-based helical millirobots in various applications, particularly in long-distance locomotion and drug transport within physiological environments, as exemplified by their use in gastric cancer treatment. The research highlights the advantages of high production speed, low cost, and versatile performance, making these millirobots promising for a wide range of applications.This study presents a novel method for fabricating lightweight and drift-free millirobots using asymmetric laser-induced graphene (LIG). By introducing asymmetric light pattern distortion to the laser-induced polymer-to-graphene conversion process, the researchers achieved the spontaneous twisting and peeling of graphene sheets from a polymer substrate. The resulting millirobots, coated with nickel and driven magnetically, exhibit rapid locomotion, excellent trajectory tracking, and precise drug delivery capabilities. The fabrication process is highly scalable, with a speed of 77 scaffolds per second, making it suitable for high-throughput and large-scale production. The millirobots are designed to remain fully suspended in liquid environments, reducing lateral drift and improving their performance. The study demonstrates the potential of these graphene-based helical millirobots in various applications, particularly in long-distance locomotion and drug transport within physiological environments, as exemplified by their use in gastric cancer treatment. The research highlights the advantages of high production speed, low cost, and versatile performance, making these millirobots promising for a wide range of applications.