Select "Install New Software ..." from the Help menu . Add the Drools and jBPM update site http://downloads.jboss.org/jbpm/release/6.0.0.Final/updatesite/ .
Select the JBoss JBPM Core and JBoss Drools Core plugins and click "Next >". Click "Next > "Next >". Click "Next > " again after viewing your choice, accept the terms of the license agreement and click "Finish" to download and install the plugins. If you receive a warning about installing software that contains unsigned content, click OK. After successful installation, Eclipse will ask you to restart, click "Yes."
Now the plugin should be installed. To check whether you can, for example, see the new jBPM project wizard: under the "File" menu, select "New Project ...", and there you can see the "New jBPM project" in the jBPM category.
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