宽恕是一项重要的积极心理品质。相关研究表明，宽恕与个体的心理健康和人际和谐有着密切的联系，因此关于宽恕的干预具有非常重要的意义和价值，而Worthington等学者提出的REACH模型是最有影响力的宽恕干预模型之一。同时已有研究证实，宽恕是一个具有社会赞许性的变量，内隐宽恕和外显宽恕并不一致，完全依靠自我报告法评估个体的宽恕水平不够全面和可靠。基于此，本研究运用团体咨询的手段，结合REACH宽恕干预模型，对大学生的宽恕水平进行了干预，并尝试使用内隐测量的方法检验团体干预的有效性。研究一通过收集质性数据，调研了大学生群体经历的宽恕事件及影响宽恕发生因素的具体信息。结果发现，大学生群体报告的宽恕经历中，超过半数的侵犯事件发生在同伴关系中。影响宽恕的外部因素包括“侵犯终止”、“侵犯者道歉认错”、“第三方的影响”，影响宽恕的内部因素则主要包括“维持关系的动机”、“归因”、“共情”等等。总体来看，这些因素基本与当前宽恕干预模型中达成宽恕的步骤和要素相吻合。研究二通过IAT范式和GNAT范式证实了，在中国大学生群体中，存在宽恕的内隐联想效应：相对于不宽恕，被试更倾向于把自我同宽恕相联系；相对于宽恕，被试更倾向于把他人和不宽恕相联系。同时内隐宽恕和外显宽恕并不一致，二者之间的分离状况与个体的心理健康、人际和谐水平有关。结合研究一中的质性结果，研究三将干预的对象设定为在同伴人际关系中受到侵犯，并希望提升宽恕特质的大学生群体，以REACH模型为基础，对其进行了团体干预，并干预的效果和过程进行了探究。结果发现：从外显测量上看，干预后团体成员的宽恕、心理健康和人际和谐水平都存在提升且得以保持；宽恕团体干预可以在内隐的层面上带来改善，团体成员在干预结束五周后的IAT测试D分数显著低于干预前，这一变化方向与与前人研究具有一致的趋势；在团体的第五和第六两个单元，希望灌注和安全情感表达两个团体有效性因素，以及自我表露的水平都发生了显著提升，宽恕水平的提升也发生在这个时期，提示在本研究的团体中，第五和第六两个单元对于成员改变的发生具有相对重要的意义。

Forgiveness is an important positive mental character. The related researches show that forgiveness is closely related to mental health and interpersonal harmony. Therefore, the intervention of forgiveness has great significance and values, where the REACH model constructed by Worthington and other scholars can be one of the most influential models of forgiveness intervention. At the same time, it has been proved that the forgiveness is a social desirability variable. Since the implicit forgiveness is not as same as the explicit forgiveness, it is not comprehensive and reliable to access the individual’s level of forgiveness when relying solely on the self-report method. Based on that, the paper makes use of the method of group counseling and intervene the forgiveness of college students with combination of the REACH forgiveness intervention model, trying to test the effectiveness of group intervention by using implicit measurement.By collecting the qualitative data among the samples of college students, research one studies the forgiveness affairs experienced by the college students group and the relevant information of the forgiveness process. The result finds that, among all the forgiveness experiences of college students, more than a half of aggression events occur to the people with relations of peer groups. The external influence factors of forgiveness include “aggression termination”, “offenders’ apology for the invasion”, “influence from the third party”, while the internal influence factors mainly include “motivation of maintaining the relationship”, “attribution”, “empathy”, etc. In general, these factors are basically consistent with the procedures and elements of in the current forgiveness intervention model. Research two testifies the existence of implicit association effect of forgiveness via the implicit measurements of the IAT paradigm and GNAT paradigm. Compared with unforgiveness, subjects are more likely to associate themselves with forgiveness. When compared with forgiveness, subjects are more likely to associate others with unforgiveness. Besides, the implicit forgiveness is not consistent with the explicit forgiveness, and the degree of separation between the two types of forgiveness is significantly negatively correlated with the level of mental health and interpersonal harmony. With combination of the qualitative results in research one, research three set the group of college students who have been offended in their peer relationships and want to improve their trait of forgiveness, as the research object, based on REACH, the researcher conducts the group intervention upon the college students being researched as well as analyzes the process and effect of intervention. The result shows that, from the perceptive of explicit measurements, the forgiveness level, mental heath and harmony of interpersonal relationship of research members have gained promotion and maintaince after the intervention. The group forgiveness intervention can bring improvement from the implicit level. The members’ scores of the IAT test which is held five weeks after the end of intervention are obviously lower, which has the consistent tendency as the former researches predict. In the fifth and sixth units of members, instillation of hope and safe emotion expression, those two curative factors of the group and the level of self-expression also increase apparently, and the promotion of forgiveness also occurs during this period, which suggests that the fifth and sixth units have played a relatively important role in the change of members.