Reading external properties in a maven project is beneficial for accessing secure credentials or logging settings.The article explains how to read an external properties file in a Maven project setup.The maven project folder structure stores the external properties file in the 'external-config' folder.The 'external.properties' file in the project root defines properties like 'my.custom.property', 'server.log', 'database.login', and 'apikey'.The article highlights the content of the 'result.txt' file and its update upon execution.The 'pom.xml' file is updated to incorporate build plugins like maven-resources-plugin and properties-maven-plugin.Executing 'mvn clean install' confirms loading properties from the external file and resource copying.The process demonstrates property value replacement and copying to the filter-result folder.The article covers how to read external properties through arguments and overwriting the external property file.Overall, the article showcases the importance of managing environment-specific builds with Maven plugins for clean, maintainable projects.