Can i able to install altiris client on mac system? If yes then what is the step?
Yes.
edit
https://www-secure.symantec.com/connect/articles/installing-ds-and-ns-agent-macintosh
See this
Manually Installing the Altiris Agent for Mac Using the Bootstrap Video
https://www-secure.symantec.com/connect/videos/push-installing-altiris-agent-mac-smp-console-video
Installing the DS and NS Agent for Macintosh