服务包（Service Pack，缩写为SP）是进程的更新、修复和（或）增强的集合，以一个独立的安装包的形式发布。许多公司，如微软或Autodesk，通常在为某一进程而做的修补进程达到一定数量时，就发布一个Service Pack。安装一个Service Pack比安装许多独立的修补进程更简单且不易出错，特别是在通过网络更新许多计算机的时候。

Service Pack通常被编号，并被缩写成SP1、SP2这样的形式。值得注意的是，除了修复缺陷，它们通常还会带来全新的特性，就像Windows XP的SP2那样。

In computing, a service pack or SP (in short SP) or a feature pack (FP) comprises a collection of updates, fixes, or enhancements to a software program delivered in the form of a single installable package. Companies often release a service pack when the number of individual patches to a given program reaches a certain (arbitrary) limit, or the software release has shown to be stabilized with a limited number of remaining issues based on users' feedback and bug tracking such as bugzilla. In large software applications such as office suites, operating systems, database software, or network management, it is not uncommon to have a service pack issued within the first year or two of a product's release. Installing a service pack is easier and less error-prone than installing many individual patches, even more so when updating multiple computers over a network, where service packs are common.