After necessary component, such as "Fandol", and "xeCJK" included, compile with XeTeX successful.
But the Chinese Character not display in Preview window. But if I open it external, these display normal.
So I think this is caused by font, I searched "Fandol" in Font Book but got nothing.

please provide the files (tex&pdf)
You might want to try a development build, see https://bintray.com/sunderme/texstudio/texstudio-osx#files
\documentclass[a4paper]{article}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{amssymb}
\usepackage{graphicx}
\usepackage{xeCJK}
\title{\LaTeX 涓枃娴嬭瘯}
\author{FukoMaster}
\begin{document}
\maketitle
\end{document}
This doesn't work.
Besides, I'm using i7-7700K, is that an old CPU ..?
I also encountered the same problem in my environment, and I think the cause of this problem may be in /Applications/texstudio.app/Contents/Frameworks/libpoppler.68.dylib .
$ strings -a /Applications/texstudio.app/Contents/Frameworks/libpoppler.68.dylib | grep poppler
/usr/local/Cellar/poppler/0.57.0-texworks/share/poppler/ColorProfiles/
/usr/local/Cellar/poppler/0.57.0-texworks/share/poppler
%Produced by poppler pdftops version: {0:s} (http://poppler.freedesktop.org)
, but my poppler path is /usr/local/Cellar/poppler/0.65.0 .
I do not think it is the best way, but I solved this problem as follows.
brew install --upgrade poppler
mkdir -p /usr/local/Cellar/poppler/0.57.0-texworks/share
ln -s /usr/local/Cellar/poppler/0.65.0/share/poppler /usr/local/Cellar/poppler/0.57.0-texworks/share/poppler
My environment is as follows.
MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports)
macOS High Sierra 10.13.4
I hope this will help!
I also encountered the same problem in my environment, and I think the cause of this problem may be in
/Applications/texstudio.app/Contents/Frameworks/libpoppler.68.dylib.$ strings -a /Applications/texstudio.app/Contents/Frameworks/libpoppler.68.dylib | grep poppler /usr/local/Cellar/poppler/0.57.0-texworks/share/poppler/ColorProfiles/ /usr/local/Cellar/poppler/0.57.0-texworks/share/poppler %Produced by poppler pdftops version: {0:s} (http://poppler.freedesktop.org), but my poppler path is
/usr/local/Cellar/poppler/0.65.0.I do not think it is the best way, but I solved this problem as follows.
brew install --upgrade poppler mkdir -p /usr/local/Cellar/poppler/0.57.0-texworks/share ln -s /usr/local/Cellar/poppler/0.65.0/share/poppler /usr/local/Cellar/poppler/0.57.0-texworks/share/popplerMy environment is as follows.
MacBook Pro (13-inch, 2017, Four Thunderbolt 3 Ports) macOS High Sierra 10.13.4I hope this will help!
It works !!!
Most helpful comment
I also encountered the same problem in my environment, and I think the cause of this problem may be in
/Applications/texstudio.app/Contents/Frameworks/libpoppler.68.dylib., but my poppler path is
/usr/local/Cellar/poppler/0.65.0.I do not think it is the best way, but I solved this problem as follows.
My environment is as follows.
I hope this will help!