随着经济的快速发展，环境污染、能源短缺的问题日益突出，发展新能源已是实现可持续发展的必然趋势。从发展需求的角度分析，本文提出了一种基于单片机的甲醇燃料电池控制系统，主要由燃料电池电堆系统、控制系统、辅助系统与机械系统构成。基于直接甲醇燃料电池（DMFC）电堆工作原理和评价单体电压一致性的研究基础，采用图形法确定系统最优运行工作参数。进一步在整体设计和详细设计两个层面进行系统开发设计。首先，在系统总体设计方案的基础上，阐述分析了控制系统电路以单片机STM32为核心的硬件电路设计与软件程序设计，经研究结果可知，该系统运行稳定可靠；其次，使用SolidWorks软件创建DMFC箱体3D模型，利用ANSYS Workbench建立DMFC仿真模型进行仿真分析，结合3D打印技术验证了整体设计参数的合理性以及最后产品与设计初衷的吻合性；最后，燃料电池系统在90 min的恒电流运行测试条件下，验证了该系统设计的正确性、合理性与可行性。文中设计为未来新能源产业相关燃料电池能源设备的研究开发提供了参考。

With the rapid economic development, the problems of environmental pollution and energy shortage have become increasingly prominent, and the development of new energy has been an inevitable trend to achieve sustainable development. From the perspective of development needs, this paper proposes a methanol fuel cell control system based on a microcontroller, mainly composed of fuel cell stack system, control system, auxiliary system and mechanical system. Based on the working principle of direct methanol fuel cell(DMFC) reactor and the research basis of evaluating monomer voltage consistency, the optimal operating parameters of the system are determined by graphical method. Further, the system development is carried out at two levels: overall design and detailed design. Firstly, based on the overall design scheme, the paper elaborates on the analysis of the control system circuit, hardware circuit design, and software program design with the STM32 microcontroller as the core. The research results show that the system operates stably and reliably. Secondly, using Solidworks software, a 3D model of the DMFC casing is created, and ANSYS Workbench is utilized to establish a DMFC simulation model for simulation analysis. Combining 3D printing technology verifies the rationality of the overall design parameters and the alignment of the final product with the initial design intent. Finally, under constant current operation conditions for 90 minutes, the fuel cell system verifies the correctness, rationality, and feasibility of the system design. To provide reference for the research and development of fuel cell energy equipment related to the future new energy industry.