This study was 9-11 years (Schematic groups - peer group initially) STEAM (Science, Technology, Engineering, Arts and Math) recognized the need for convergence talent education and children in need of modern society, art activities for younger children I looked to find a central art teaching methods. Paper and saw different approaches to fusion of the elements of art and knowledge with “iron bridge” theme. Paper was put in mind, consider the purpose and meaning of art education and children in art education by focusing the theoretical background to analyze the concepts and types of fusion education. And art STEAM relationship with the subjects Castle, understanding the developmental characteristics of 9-11 year-old children and this area and the content analysis of STEAM's “iron bridge” theme in the background, a railway bridge methodological premise of the art map a fusion of subject and STEAM and it based on the suggested teaching strategies. “Railway bridge” fusion of art activities subject ever saw unfold the activity of a total of 13 hours prior drawing, a railway bridge crossing, a railway bridge visually draw imaginary pictures - Railway bridge, railway bridge-shaped design, a railway bridge design development, making it a railway bridge, after drawing activities. Summary the results are as follows. “Railway bridge” a fusion of art map STEAM subjects and ways. First, through targeted activities in detail can be aware of the scientific facts on the subject. Second, an attempt can be made to specific mathematical thinking of a railway bridge balance, proportion, different shape recognition, such as via the trip action. Third, is the future railway bridge designer formative process of designing a railway bridge and produce can be helpful to the improvement of technical skills. Fourth, a railway bridge design and making process can bring to the development of engineering thinking and skills through art have. Fifth, the design of the plan and the process of developing a railway bridge railway bridge can promote the self-esteem that you can create a railway bridge railway bridge professionals of the future. Sixth, create a basic design plan can be developed and creative abilities. Seventh, it is possible to improve the spatial perception through the drawing at various locations on the iron bridge. Eighth, the iron bridge over the real draw may raise observant. Ninth, the real draw iron bridge is aware of the change of perspective, it overlaps with, and subject to a variety of locations can bring the development of visual drawing. Finally, the process of developing the shapes found in dairy products through a railway bridge can promote the development of fluency development and design capabilities. A fusion of Art Map “iron bridge” theme and STEAM is the future of the railway bridge experts, sometimes artists, mathematicians, engineers, and scientists for children were planned to try the indirect experience in that position. This process is still children, but could be the result come experience the world of adults and take professional responsibility, the concept expanded space-time perception, problem solving, creative thinking, making abilities, self-esteem, width growth of large capacity, such as on the subject have.