Data structure and algorithm is one of the core courses in computer science. The textbook “Algorithm and Data Structure: C language description " edited by Naixiao Zhang, Professor of Peking University, is one of the national higher education quality teaching materials in China. The software was built according to this textbook, the visualization of the algorithms in the textbook was implemented by the software. The dynamic demonstration of the classic algorithms, automatic code execution, code execution in single step, displaying of key memory data, highlighting the executing code, supporting for user defined data input and other functions were implemented. This software can be executed on Windows platform. It used C# language programming on .Net Framework, Windows Forms (Winforms) and GDI+ graphics library technology to achieve the dynamic demonstration and interactive features. Keywords-data structure and algorithm; visualization; CAI; C#