以骈文为"应用"的观念，在宋人的视野中得到了凸显，成为宋人对骈文的基本定位。伴随着"应用观"的成型，"应用"文章与其他文章的分野变得鲜明，"应用"多用骈体，而其他文章多用散体，由此形成骈散分途的格局。对于"应用"的骈文，宋人存在着"有用"和"无用"这样两极分化的评价，构筑了宋代骈文多维度的价值体系。"应用"是宋人对骈文的重要定位，也是宋代骈文研究的一个关键词。以"应用观"为基础，才能有效实现宋代骈文的深入探究。

The idea of parallel prose(pianwen) as practical writing was so highlighted that it became the fundamental understanding in the Song Dynasty. Consequently, the separation between practical writing and others became clear, so that the former adopt the parallel style while the latter the free style. The evaluation of "practical" parallel prose was diversified, some considering it as useful while others useless. Only focusing on the idea of parallel prose as "practical" writing can we deepen the research of parallel prose in the Song Dynasty since the word "practical" was essential to the understanding and evaluation of parallel prose in the Song Dynasty.