Who can help me to go Australia?

You need to clarify a bit on your question. As someone who works in the passenger services industry (for a Perth based company called Priority Pickup), I regularly come across a number of foreign tourists who come to Australia for various reasons. Most of them are either on a personal or business trip. Personal trips are easy but you will need the money to buy tickets and survive in this country (it is pretty expensive around here). Business trips are cool in that your company pays for you - including daily pocket cash that you can use for your sight seeing. But you need to diligently find a job that will let you come here. As someone else has said here in this thread, you can have it easy if you are in the hospitality industry like being an air hostess or something.

Finally, some countries have the concept of working holiday - you can just buy a one way ticket to Australia and find a job here while you are on holiday. Australia has this arrangement mostly with the western nations like USA, UK, etc. Check the Australia emigration website for more accurate details regarding this.

We have a beautiful country and you must definitely pay a visit. Welcome.