Rechargeable aluminum-ion batteries (AlBs) have emerged as a promising alternative to lithium-ion batteries due to their high theoretical capacity, abundance, and safety. However, the electrochemical performance of AlBs is limited by the poor selection of cathode materials. Transition metal dichalcogenides (TMDs) have been explored as suitable cathode materials due to their wide layer spacing, large surface area, and distinct physicochemical characteristics. This mini-review summarizes recent research progress on TMD-based cathode materials in non-aqueous AlBs, including MoS₂, MoSe₂, WS₂, WSe₂, VS₂, and VSe₂. The review highlights the benefits of utilizing 3D-printed electrodes for AlBs and discusses the challenges and strategies to improve the electrochemical performance of TMD-based cathode materials. Despite the promising performance of TMDs, challenges such as side reactions with electrolytes, structural instability, and volume changes during intercalation and deintercalation processes need to be addressed. The integration of TMDs with other materials, such as carbon and MXene, is expected to enhance their performance. Additionally, 3D printing technology offers significant advantages in fabricating complex electrode architectures and improving battery performance, but it also faces challenges in developing compatible materials and addressing potential defects. The safety and environmental considerations of TMDs in AlBs are crucial for their widespread adoption.Rechargeable aluminum-ion batteries (AlBs) have emerged as a promising alternative to lithium-ion batteries due to their high theoretical capacity, abundance, and safety. However, the electrochemical performance of AlBs is limited by the poor selection of cathode materials. Transition metal dichalcogenides (TMDs) have been explored as suitable cathode materials due to their wide layer spacing, large surface area, and distinct physicochemical characteristics. This mini-review summarizes recent research progress on TMD-based cathode materials in non-aqueous AlBs, including MoS₂, MoSe₂, WS₂, WSe₂, VS₂, and VSe₂. The review highlights the benefits of utilizing 3D-printed electrodes for AlBs and discusses the challenges and strategies to improve the electrochemical performance of TMD-based cathode materials. Despite the promising performance of TMDs, challenges such as side reactions with electrolytes, structural instability, and volume changes during intercalation and deintercalation processes need to be addressed. The integration of TMDs with other materials, such as carbon and MXene, is expected to enhance their performance. Additionally, 3D printing technology offers significant advantages in fabricating complex electrode architectures and improving battery performance, but it also faces challenges in developing compatible materials and addressing potential defects. The safety and environmental considerations of TMDs in AlBs are crucial for their widespread adoption.