how i can watch video photoshop in arabic from this site?

I would imagine you are going to find some great videos in Arabic on YouTube.  If I want to learn something and I can not find it on the Adobe site then I head over to YouTube. 

If you can not find any there, just let me know and I will also take a peek.

There also might be some Photoshop Users Groups on Facebook that are for Arabic speakers.  You might look to see if there are some as well.

Also... I know that there are some Behance Portfolio Reviews happening in Arabic countries.  Something worth looking into if you want to network with other creatives in your country.

Please clarify your question. Do you mean you want to watch Photoshop tutorials in Arabic? If so, well Adobe doesn't offer videos in Arabic yet, but you may navigate through them in Arabic here…

https://helpx.adobe.com/mena_ar/photoshop/get-started.html?promoid=VPM4KCNL&mv=other​