1951年9月,中央人民政府出版总署公布了《标点符号用法》,同年10月政务院下达指示,要求全国遵照使用。三十多年来,文字的书写排印已由直行改为横行,标点符号用法也有某些发展变化,因此需要进行修订。修订的内容主要有以下几方面:原列14种符号,现为16种,增加了连接号和间隔号;简化了说明;更换了例句,针对书写排印改为横行,某些说法也作了相应的改动. In September 1951, the General Administration of Press of the Central People’s Government released the “Usage of Punctuation Symbols”. In October the same year, the State Council issued an instruction requiring the whole country to comply with its use. Over the past 30 years, the typography of writing has changed from straight to rampant. Some changes have also taken place in the usage of punctuation marks. Therefore, amendments are required. The revised content mainly has the following aspects: The original column 14 kinds of symbols, is now 16 species, an increase of the connection number and spacers; simplified description; replacement of the example sentence, for the typography to rampant, some of the statements have also been made Changes.