随建即连网络（英语：mobile ad hoc network，缩写为MANET，或英语：mobile mesh network），又译为行动随意网路、移动临时网络，它是一种以行动设备，通过无线链接，自我组态所形成的网络，属于无线随意网络的一种。

在MANET之中的每个行动设备都可以自由移动，随时改变无线链接。每个行动设备节点都必须协助转发网络封包，即使这个封包是跟这个设备无关的。因此，每个节点都扮演了路由器的角色。要创建一个 MANET，最根本的挑战在于让每个行动设备都能够得到足够的信息，以协助保持网络信息的流通。像这样的网络可能是自己运作的，或者链接到更大的互联网。

A mobile ad hoc network (MANET) is a continuously self-configuring, infrastructure-less network of mobile devices connected without wires. Ad hoc is Latin and means "for this" (i.e., for this purpose).

Each device in a MANET is free to move independently in any direction, and will therefore change its links to other devices frequently. Each must forward traffic unrelated to its own use, and therefore be a router. The primary challenge in building a MANET is equipping each device to continuously maintain the information required to properly route traffic. Such networks may operate by themselves or may be connected to the larger Internet. They may contain one or multiple and different transceivers between nodes. This results in a highly dynamic, autonomous topology .