Hi! I'm making a small game( a project at University), and the problem is: I do not know much about 3D design( and I have no time for this- I just know about programming). Now I need a character- human character( do not need "beauty" or "skin", just need it can animate). My friend use Character Studio in 3Ds max- it's good and quite simple. But I do not have 3Ds Max Studio( it's too expensive and so heavy!). Can I create a human-character( which just can animate easily, do not need skin, or mesh,...) in easy way? thank you!

You can try this. There are many follow-up tutorials to that one too.

But there is nothing easy about modeling. It's a skill that has to be learned and perfected, like anything else.

No, I just need a bone- character, which just can animate( like character I can create easily in Character studio). I need it to perfomance some action...

Then open Blender, plot out a few bones, and then export it out.

just get a free character rig. Here are some for Blender which is free software:
http://pterandon.blogspot.com/2007/08/free-blender-models-this-post-is.html