下载解压工具包：
https://www.mathworks.com/matlabcentral/fileexchange/49542-phymhan-matlab-axis-label-alignment

添加至MATLAB路径:

在三维绘图后增加下列语句即可

ax = struct('Axes', gca); 
align_axislabel([],ax) 
h3d = rotate3d; 
set(h3d,'ActionPreCallback','set(gcf,''windowbuttonmotionfcn'',@align_axislabel)'); 
set(h3d,'ActionPostCallback','set(gcf,''windowbuttonmotionfcn'','''')');

【个人感觉不好用，调整图窗大小后会乱】