How we Cut the Detailed hair through photoshop?

as simple as use the "Refine Edge" after you select the subject and focusing on hair by quick selection tool then click the refine edge and apply the diffrent types of tool on how to cut  remove the background on hair detailedly it.. and take note best for hi resolution images and raw files to take the best cut out..

The question is not clear.

According to the understanding its depending on the picture from where you cut the hairs. The best way in my opinion is to select from color selection tool. 

• You should start by selecting the object, and this operation always depends on our background, if its a solid color then selecting the background then reversing the selection in order to select the object would be the perfect solution.
• You can select your object using several tools including but not limited to: Magic wand tool, Quick selection tool (along with lasso tool), Pen tool and Color range, each photo has it's own strategy.
• Assuming you have your hairy object selected, hit Refine Edge in the tool properties bar, the refine edge properties panel will appear.
• Select your view, I personally prefer using the following two views, black background for light objects, and white background for dark objects.
• Ensure that smart radius is on, and then play with the radius of the edge detection until the edges of the hair look reasonably detailed and naturally roll off.
• Now brush your way through the hair using the Refine Radius Tool (Refine Brush). This tool allows you to selectively expand your edge detection area, bringing in more details from the subject as Photoshop learns what is and isn't background. It may take you a few tries to figure out how best to use this tool. Press alt while brushing to reveal the details if you've made a mistake.
• You can play around with the adjust edges options until satisfied, but be careful as too much of smooth, feathering will only result in softening the edge and looking strange and not natural, and I usually don't find contrast useful.
• Adjust the shift edge and the Decontaminate Colors they are always variable for every photo you will refine.
• Output your refined selection, I always output my selection to A layer mask so I can always come back and adjust it whenever I want to.