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A numerical coding method based on Pinyin and Strokes for inputting Chinese characters is presented, which improves the numeric coding method based on Strokes presented before. This coding method encodes Chinese characters with Basic Unit-Stroke, the first Pinyin and sometimes with a few high-frequency components. This method makes the response speed higher and makes the coincident-code rate lower. So it is a high efficiency input method which is easy to le, remember and to apply. Firstly the encod?ing rules for words of this input method are discussed in the beginning of the article. Secondly, pressed key distribution and coinci?dent-code rate are deeply discussed statistically in it. Thirdly, it deeply analyzes and proves the advantage of low coincident code rate of this encoding method. What’s more, the article will introduce the encoding rules for phrases and the Error-Resilient Encod?ing. It will also briefly introduce the implements of this input method on several current platforms. Finally it summarizes and ex?pounds some merits of this encoding method, such as innovative human-computer interface, etc.