当排除了编码问题后那么很可能是字体设置的问题，特别是页面中的文字显示为方块时。
参照wiki：
http://en.wikipedia.org/wiki/Help:Multilingual_support_%28East_Asian%29#Debian-based_GNU.2FLinux
In order to display Chinese, Japanese and/or Korean characters, you must install some font packages:
Language Serif Sans serif Chinese (both Simplified & Traditional) ttf-arphic-uming (Outdated dummy package in Debian 7) ttf-wqy-zenhei (Outdated dummy package in Debian 7) Japanese fonts-ipafont-mincho fonts-ipafont-gothic Korean ttf-unfonts-core There are some alternative packages for some languages, but the ones listed above do work.
To install all the fonts listed above in Debian, Ubuntu, and other variants:
sudo apt-get install ttf-arphic-uming ttf-wqy-zenhei fonts-ipafont-mincho fonts-ipafont-gothic ttf-unfonts-core