A method for installing software components includes: a terminal receives a software component package delivered by a Device Management (DM) server directly or a download address of the component package and a command instructing to download delivered by the DM server, where the software component package contains more than one software component; if the terminal receives the download address and the command instructing to download, the terminal downloads the software component package from the download address; the terminal installs the obtained software component package locally and generates management nodes and subnodes of the management nodes corresponding to the software components under a Deployed subtree of the Software Component Management Object (SCOMO) of the terminal. With the present invention, the process of installing software component is more reasonable. A system and apparatus for installing software components are also provided.