XeLaTeX has been added to the standard commands of Texmaker  since the version 3.5.1. This blog shows how to use XeLaTeX in Texmaker with a simple example.

1. Use XeLaTeX in Texmaker

Menu –> Options –> Configure Texmaker –> Quick build –> Select ‘XeLaTeX + View PDF’，as shown in the following figure:

Fig. 1. Texmaker configuration

The Latin Modern fonts is defaulted by XeLaTeX, not covering Chinese. To display Chinese characters correctly, the font type should be assigned explicitly by using the command:

\usepackage{fontspec}  %Advanced font selection in X∃LATEX and LuaLATEX

\setsansfont{<font name>}[<font options>]

Here is a simple example.

\documentclass{beamer}
\usetheme{Warsaw} 

\usepackage{fontspec}

\setsansfont{Microsoft YaHei}   %Microsoft YaHei Regular (don't include Regular )
% or use the filename
\setsansfont{msyh.ttc}

\title{标题}
\author{作者}
\date{}

\begin{document}
\begin{frame}[noframenumbering]
    \titlepage
\end{frame}
\end{document}

PS: Check Windows available fonts by Start –> Run –> %windir%\fonts –> OK.

2. More about XeLaTeX

The following text is excerpted from the wikipedia XeTeX:

XeTeX (/ˈziːtɛx/ zee-tekh^[1] or /ˈziːtɛk/) is a TeX typesetting engine using Unicode and supporting modern font technologies such as OpenType, Graphite and Apple Advanced Typography (AAT).

XeLaTeX is a replacement for PDFLaTeX, it takes LaTeX input and turns it into a PDF. The major differences between latex/pdflatex and xelatex are^[2]:

• xelatex assumes input is in UTF8 (which allows encoding of non-English and non-Latin characters) by default
• xelatex uses system fonts, not specially installed latex fonts

For more info, please reach out the official website http://www.tug.org/xetex/

References:
[1]Texmaker changelog
[2]Using XeLaTeX