Stroke-based sorting, also called stroke-based ordering or stroke-based order, is one of the five sorting methods frequently used in modern Chinese dictionaries, the others being radical-based sorting, pinyin-based sorting, bopomofo and the four-corner method. In addition to functioning as an independent sorting method, stroke-based sorting is often employed to support the other methods. For example, in Xinhua Dictionary (新华字典), Xiandai Hanyu Cidian (现代汉语词典) and Oxford Chinese Dictionary, stroke-based sorting is used to sort homophones in Pinyin sorting, while in radical-based sorting it helps to sort the radical list, the characters under a common radical, as well as the list of characters difficult to lookup by radicals.
In stroke-based sorting, Chinese characters are ordered by different features of strokes, including stroke counts, stroke forms, stroke orders, stroke combinations, stroke positions, etc.