I am new in Fuse. I am using Jboss Fuse and creating Fuse project. I want to know basic difference between container like spring, blueprint and router?
Spring and blueprint are dependency injection frameworks. You use them to configure all the dependencies you will use in your JBoss Fuse application (just as jms queues or java Datasources).
Spring is a popular framework, whereas blueprint is OSGi-specific (that's why it is used in JBoss Fuse).
A router controls the flow of messages in your application. JBoss Fuse is built upon the Apache Camel lightweight integration framework, which does your routing. When you write a JBoss Fuse application, you will likely be defining Routes via Java or XML.
To read more about routing, I suggest you read about Enterprise Integration Patterns on the apache camel web site.