如今感恩在我们生活中随处可见，学校中感恩教育尤为盛行，感恩为什么会如此重要？对于初中生起什么作用？又是怎样起作用的呢？带着这些疑问，展开了本研究。本研究采用整群随机抽样法在北京市两所中学中随机抽取七年级、八年级、九年级各4个班，共计431名初中生，对其感恩、领悟社会支持、学习投入进行了调查，并收集学生学业成绩，考察中国文化背景下初中生感恩与学业成绩的现状，以及二者间的关系，并探讨领悟社会支持与学习投入在其中的中介作用。结果：（1）初中生感恩水平较高，且女生显著高于男生，班干部显著高于非班干部；（2）初中生学业成绩上，性别以及是否为班干部对其影响较大；（3）在初中生感恩与学业成绩的关系中，领悟社会支持与学习投入起系列中介作用，并且感恩与学业成绩间、领悟社会支持与学业成绩间存在遮掩效应。

Gratitude is everywhere in our lives, particularly in schools. Why is gratitude so important? What is its effect on junior high school students? And how it works? With these questions, we expand the study. This study uses a stratified random sampling method randomly selects two secondary schools in Beijing, and randomly selects six classes from grade seven to nine in each school, a total of 431 junior high school students. This study measures their gratitude, perceived social support, learning engagement and collects their academic performance ,to investigate the current situation of junior high school students’ gratitude and academic performance and the relationships between them, and to explore perceived social support , learning engagement into the mediating role of in it under the background of Chinese culture. The results shows that: (1)Junior high school students’ gratitude level is high, and the girls are significantly higher than boys, the class leaders are significantly higher than the other students; (2) Gender and class leader or not have a greater impact on the junior high school students’ academic performance; (3) The perceived social support and learning engagement make a serial mediational role of the relationship between gratitude with academic performance among junior students, Meanwhile, there is a shading effect between gratitude with academic performance and between perceived social support with learning engagement.