Abstract: The abstract writing of science and technology paper is usually unspecific, inexact and incomplete, so the readers can not get enough information form abstract. This paper analysed abstract writing criterion and demands of internal-overseas famous index systems. By the means of comparison and analogism, it is concluded that canonical abstract includes specific object, method, result and conclusion; its sentences must be accurate and exact; constructure must be precise, and logic must be strong. The analysis results show that standardized abstract can increase the received opportunity of science and technology paper by internal-overseas famous index system.