Hi
I have a cloth object stitched with rope throw a holes in that cloth object
but when i start a simulation the rope get stretched forever and pass throw the cloth
how i can solve this problem? or what parameters I should maintain?
thanks in advance

Having wires pass through cloth is a nightmare waiting to happen. Smartest thing I can suggest would be splitting your cloth object in two at every hole, and connecting each piece to the cloth object with a constraint. I had to do something like this recently, and unless someone can suggest a more sophisticated method to resolve this, then you might be biting off a lot.

solving both as Vellum (Cloth and Hair/String) should work and while relying purely on collisions may be enough in this case, you can always add additional constraint if you need to