I dont think this is possible directly, and I have difficulty imagine why you would want to.
Anyway - if you insist you workaround by making you sketch entities a block.
After dimensioning some small curves,open profile are not seen due to dimension line,text,.so if hide some open profile can be seen .......due to that reasons only I want to hide the dimension like in Catia we can hide
Hi Mohd, I like Thomas's Lateral thinking, a similar solution I sometimes use is to exit the sketch and start a new one by converting entities of the entire previous sketch, by selecting sketch in feature tree.
Also if the dimensions aren't being used anywhere, or at the beginning of a new part, you could tempoarily delete the dims and use Fix
You can try to hide the dimensions under the view Heads Up menu. But it seems that if you add a new dimension it turns them on again.
Also - and perhaps more usefully - I've reduced the size of my sketch dimensions in my Part templates, so they don't clutter the screen as much. You can change font size, arrow, etc.