tabu 패키지의 설명서를 참조하세요.

\documentclass{article}
\usepackage{tabu}
\begin{document}
\renewcommand\arraystretch{1.5}
\begin{table}
\begin{center}
\caption{Simulation Parameters}
\label{tab1}
\begin{tabu}{ | X[c] | X[c] | X[c] | X[c] | X[c] | X[c] | X[c] | X[c] | X[c] |}
    \hline
    \multicolumn{5}{|c|}{\textbf{Shape Parameter}} & \multicolumn{4}{c|}{\textbf{Architect Parameter}}\\
    \hline
    \rowfont{\bfseries\itshape} M & C &H/W & R/S & E/F & p &q & r & t\\
    \hline
    384& 256& 15& 3& 13& 16& 4& 1& 1\\
    \hline
\end{tabu}
\end{center}
\end{table}
\end{document}