The logo is inspired by the ancient Xucheng in Sihong County, and combined with traditional Chinese calligraphy culture, it reflects that Sihong County has a long history and cultural heritage in Chinese history. In terms of visual expression, the main graphic of the logo is derived from the evolution of the word "Si", and the epitome of the ancient Xucheng is integrated with the evolution of calligraphy, echoing the theme. Finally, in terms of font design, the relaxed and pleasant style of handwritten fonts is displayed. In terms of color, three rich colors, red, yellow and blue, are used to express it. The overall logo is creative, novel, rich in connotation, simple and generous, and meets the characteristics of easy identification and easy dissemination of the logo.