Less than 1% of the Earth's freshwater resources are available for human consumption, mainly sourced from rivers and lakes. With the rapid growth of the global population, many developed countries are facing water scarcity issues. However, fog harvesting systems are a technology that can be effective in specific environmental areas. For example, in the Sahara Desert region of Africa, there is a lack of rainwater but a significant amount of fog water resources. By utilizing fog harvesting systems, fog water can be effectively collected and provide drinkable water for arid regions. Fog harvesting systems are an environmentally friendly and energy-saving method of collecting water resources that can effectively solve some regions' water shortage problems. To improve the efficiency of fog harvesting systems, this study was inspired by the needle-like branch and leaf structure of the Agave sisalana plant, using additive manufacturing and surface modification techniques to prepare highly efficient fog harvesting structures. This study proposes a highly efficient and simple preparation method, while also contributing to environmental sustainability.