立功制度是我国刑法中一种重要的刑罚裁量制度,协助抓捕型立功是其主要分支之一。司法解释对协助抓捕型立功的起始时间进行了限定,然而在适用中遭遇了法理和实务的双重困境。本文拟从真实案例出发,对协助抓捕型立功的起始时间的合理认定进行选择和论证,并对立功认定实际运行中出现的问题进行分析,提出解决进路。 The meritorious service system is an important punishment system in criminal law of our country. It is one of the main branches to assist arresting meritorious deeds. The judicial interpretation limits the starting time of arresting meritorious service, however, it encounters double dilemma of jurisprudence and practice in the application. This article intends to proceed from the real case to select and demonstrate the reasonable identification of the starting time of arresting meritorious service and to analyze the problems that arise in the confirmation of meritorious service in actual operation and propose solutions to the problems.