The purpose of this research is to develop an on-line assessment for examining the stroke order of Chinese character writing by computerized model. Using this on-line assessment system, it is more convenient for teachers or students to use in the classroom or outside class. The system can also provide immediate feedback on the input character in terms of its key information of stroke order and some global structure relations between strokes so it could accurately identify character writing problems such as wrong stroke order and incorrect stroke. This on-line system solve the problem for a teacher to know students' writing order of a Chinese character and assist teachers to assess Chinese characters writing. In addition to the assessment, this system can help students to learn the stroke order of Chinese characters writing efficiently.