diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd0c9f22..d9dbefcc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,10 @@
 
 ## [Unreleased]
 
+### Added
+
+- 增加选项 `eqn-paren-style` 控制公式编号的括号样式（[#959](https://github.com/tuna/thuthesis/pull/959)）。
+
 ### Fixed
 
 - 解决本科生的多篇“书面翻译对应的原文索引”（[#956](https://github.com/tuna/thuthesis/issues/956)）。
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-...\marks1{Comments from Thesis Supervisor}
-...\marks2{\prg_do_nothing: }
+...\marks1{\__mark_id:n {35}Comments from Thesis Supervisor}
+...\marks2{\__mark_id:n {36}}
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diff --git a/testfiles/09-main-postdoc.tlg b/testfiles/09-main-postdoc.tlg
index 02371279..0db39270 100644
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+...\marks1{\__mark_id:n {1}摘\hskip 1em\relax 要}
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-...\marks1{第3章\hskip 1em\relax 对等网络中宽松约束的一般性搜索\ETC.}
-...\marks2{\prg_do_nothing: }
+...\marks1{\__mark_id:n {1}第3章\hskip 1em\relax 对等网络中宽松约束的\ETC.}
+...\marks2{\__mark_id:n {2}}
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-...\marks2{\prg_do_nothing: }
+...\marks1{\__mark_id:n {3}第4章\hskip 1em\relax 对等网络中宽松约束的\ETC.}
+...\marks2{\__mark_id:n {4}}
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diff --git a/testfiles/10-bibtex/10-bibtex-apa-natbib.tlg b/testfiles/10-bibtex/10-bibtex-apa-natbib.tlg
index bec3c9e2..84e3ced5 100644
--- a/testfiles/10-bibtex/10-bibtex-apa-natbib.tlg
+++ b/testfiles/10-bibtex/10-bibtex-apa-natbib.tlg
@@ -1,6 +1,7 @@
 This is a generated file for the l3build validation system.
 Don't change this file in any respect.
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index 37732a6e..0d400e2b 100644
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index e522627c..26dd5203 100644
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-...\marks1{附录 A\hskip 1em\relax 工程领导力调查问卷}
-...\marks2{\prg_do_nothing: }
+...\marks1{\__mark_id:n {1}附录 A\hskip 1em\relax 工程领导力调查问卷}
+...\marks2{\__mark_id:n {2}}
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diff --git a/testfiles/12-acknowledgements.tlg b/testfiles/12-acknowledgements.tlg
index 07b5bc40..94128e21 100644
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+...\marks1{\__mark_id:n {1}致\hskip 1em\relax 谢}
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+...\marks1{\__mark_id:n {1}声\protect \hspace  {1em}明}
+...\marks2{\__mark_id:n {2}声\protect \hspace  {1em}明}
+...\marks3{\__mark_id:n {3}声\protect \hspace  {1em}明}
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index aeb52130..6043e5d2 100644
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-...\marks2{个人简历、在学期间完成的相关学术成果}
-...\marks3{个人简历、在学期间完成的相关学术成果}
+...\marks1{\__mark_id:n {1}个人简历、在学期间完成的相关学术成果}
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index f71cbe62..e821df9f 100644
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-...\marks2{\prg_do_nothing: }
+...\marks1{\__mark_id:n {1}第1章\hskip 1em\relax 定理}
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diff --git a/testfiles/package-hyperref.tlg b/testfiles/package-hyperref.tlg
index 4b6ac36b..c1e19d20 100644
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+....\marks1{\__mark_id:n {1}学位论文指导小组、公开评阅人和答辩委\ETC.}
+....\marks2{\__mark_id:n {2}学位论文指导小组、公开评阅人和答辩委\ETC.}
+....\marks3{\__mark_id:n {3}学位论文指导小组、公开评阅人和答辩委\ETC.}
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-....\marks2{摘\hskip 1em\relax 要}
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+....\marks1{\__mark_id:n {4}摘\hskip 1em\relax 要}
+....\marks2{\__mark_id:n {5}摘\hskip 1em\relax 要}
+....\marks3{\__mark_id:n {6}摘\hskip 1em\relax 要}
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+....\marks1{\__mark_id:n {16}List of Symbols and Acronyms}
+....\marks2{\__mark_id:n {17}List of Symbols and Acronyms}
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-....\marks2{References}
-....\marks3{References}
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-....\marks2{Acknowledgements}
-....\marks3{Acknowledgements}
+....\marks1{\__mark_id:n {24}Acknowledgements}
+....\marks2{\__mark_id:n {25}Acknowledgements}
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+....\marks1{\__mark_id:n {27}声\protect \hspace  {1em}明}
+....\marks2{\__mark_id:n {28}声\protect \hspace  {1em}明}
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-....\marks3{Resume}
+....\marks1{\__mark_id:n {30}Resume}
+....\marks2{\__mark_id:n {31}Resume}
+....\marks3{\__mark_id:n {32}Resume}
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+....\marks1{\__mark_id:n {33}Comments from Thesis Supervisor}
+....\marks2{\__mark_id:n {34}}
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diff --git a/testfiles/package-longtable.tlg b/testfiles/package-longtable.tlg
index 68432243..910e9c81 100644
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diff --git a/testfiles/package-ntheorem.tlg b/testfiles/package-ntheorem.tlg
index ea14d630..2d580d4c 100644
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+...\marks1{\__mark_id:n {1}第1章\hskip 1em\relax 定理}
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diff --git a/thuthesis.dtx b/thuthesis.dtx
index 375901e0..9403c80a 100644
--- a/thuthesis.dtx
+++ b/thuthesis.dtx
@@ -813,7 +813,7 @@
 %   }
 % \end{latex}
 %
-% 用户也可以逐项修改数学样式。
+% 用户也可以逐项修改数学样式，包括：
 % \newcommand\dif{\mathop{}\!\mathrm{d}}
 % \begin{enumerate}
 %   \item \DescribeOption{uppercase-greek}
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 % \cs{uppi}。
 %
-% 另外，模板还为 `math-font` 提供了传统的 Type 1 字体 \option{newtx}。
+% 另外，模板还为 |math-font| 提供了传统的 Type 1 字体 \option{newtx}。
 % 该选项会调用 \pkg{newtxmath} 宏包。
 % 但是，如果西文字体已经使用了 OpenType 的 Times New Roman，
 % 混用 Type 1 字体可能会导致问题，尤其是使用 \pkg{siunitx} 宏包时。
 % 该选项还处于测试阶段，需要谨慎使用。
 %
+% \DescribeOption{eqn-paren-style}
+% 控制中文论文中，数学公式编号两边的括号样式。可选项包括：\option{full}（全角，默认） / \option{half}（半角）。
+% 在语言为英语（|language = english|）时，此选项无效，仅使用半角括号。
+%
 % \subsubsection{定理环境}
 % \label{sec:theorem}
 % \thuthesis{} 定义了常用的数学环境：
@@ -1658,6 +1662,17 @@
     },
     default = print,
   },
+%    \end{macrocode}
+%
+% 数学公式编号的括号使用全角还是半角。
+%    \begin{macrocode}
+  eqn-paren-style = {
+    name = eqn@paren@style,
+    choices = {
+      full,
+      half,
+    }
+  },
 }
 \newif\ifthu@degree@graduate
 \newcommand\thu@set@graduate{%
@@ -3511,10 +3526,23 @@
 % 中文模板的公式编号使用中文括号。需要修改 \pkg{amsmath} 的 \cs{tagform@}。
 % 这里中文的 \cs{unskip} 是为了“|式~\eqref|”这样的写法不产生额外的空格。
 %    \begin{macrocode}
+\newcommand\thu@eqn@left@paren{（}
+\newcommand\thu@eqn@right@paren{）}
+\newcommand\thu@set@eqn@paren@style{%
+  \ifthu@eqn@paren@style@full
+    \renewcommand\thu@eqn@left@paren{（}%
+    \renewcommand\thu@eqn@right@paren{）}%
+  \else
+    \renewcommand\thu@eqn@left@paren{(}%
+    \renewcommand\thu@eqn@right@paren{)}%
+  \fi
+}
+\thu@set@eqn@paren@style
+\thu@option@hook{eqn-paren-style}{\thu@set@eqn@paren@style}
 \newcommand\thu@put@parentheses[1]{%
   \ifthu@language@chinese
     \unskip
-    （#1）%
+    \thu@eqn@left@paren#1\thu@eqn@right@paren
   \else
     (#1)%
   \fi