An encoding and input method of world characters, used in a computer device for encoding and inputting the world characters, said computer device comprising a numerical keypad; said method comprises the steps of: for each category of world characters, allocating some different types of basic elements forming the character of this category or capable of determining the character of this category to the corresponding number keys on the numerical pad, the code of said each basic element is uniquely determined by area code and position code, wherein said position code is the position number in the number keys to which the basic element pertains, where said area code is the number of the key at which the element is located; selecting the category of the characters to be inputted; for each character or each word of the character category to be inputted, splitting it as a combination of some of said elements; arranging in order the codes corresponding to each element in said combination and taking them as the code of the character or the word; and inputting the code of the character and using the space bar to indicate the completion of inputting the code of the character, wherein said world characters are classified into block characters, linear characters, hybrid characters, punctuations and symbols; said block characters are classified as block ideograph character and block phonetic character; as to the block ideograph character, said basic elements respectively comprise basic strokes and the combinations thereof forming the glyph of said block ideograph character, and PinYin alphabets representing the pronunciation of the block ideograph character; as to the block phonetic character, said basic elements respectively comprise the basic strokes and the combinations thereof forming the glyph of said block phonetic character, and the alphabets representing the pronunciation and forming the glyph of the block phonetic character; as to the linear character, said elements are the alphabets of the linear character; as to the hybrid character, said basic elements comprise the basic strokes and the combinations thereof forming the block ideograph character, as well as the alphabets forming the linear character; as to the punctuations, said elements are the strokes of the punctuations. for each category of world characters, allocating some different types of basic elements forming the character of this category or capable of determining the character of this category to the corresponding number keys on the numerical pad, the code of said each basic element is uniquely determined by area code and position code, wherein said position code is the position number in the number keys to which the basic element pertains, where said area code is the number of the key at which the element is located; selecting the category of the characters to be inputted; for each character or each word of the character category to be inputted, splitting it as a combination of some of said elements; arranging in order the codes corresponding to each element in said combination and taking them as the code of the character or the word; and inputting the code of the character and using the space bar to indicate the completion of inputting the code of the character, wherein said world characters are classified into block characters, linear characters, hybrid characters, punctuations and symbols; said block characters are classified as block ideograph character and block phonetic character; as to the block ideograph character, said basic elements respectively comprise basic strokes and the combinations thereof forming the glyph of said block ideograph character, and PinYin alphabets representing the pronunciation of the block ideograph character; as to the block phonetic character, said basic elements respectively comprise the basic strokes and the combinations thereof forming the glyph of said block phonetic character, and the alphabets representing the pronunciation and forming the glyph of the block phonetic character; as to the linear character, said elements are the alphabets of the linear character; as to the hybrid character, said basic elements comprise the basic strokes and the combinations thereof forming the block ideograph character, as well as the alphabets forming the linear character; as to the punctuations, said elements are the strokes of the punctuations.