How can I use normal map for terrain (415289)

in unity terrain now I want to use normalmap+ texture unity can do?

The terrain system doesn’t currently support this, unfortunately. It might be possible to modify the built-in terrain shader, however.

Or use a terrain mesh instead:
http://www.unifycommunity.com/wiki/index.php?title=TerrainTwoLayerBumped

or go to the showcase board and look for the high quality terrain shader thread which already offers it :smile: