本文给出了QT 的嵌入式版本(QT/E)与其它嵌入式GUI 工具箱在性能、结构上的比较, 从宏观上分析了QT/E 的优点及不足之处,对QT/E 的内部机制进行了分析,包括QT/E 的c-s 结构、进程间通讯、图形绘制方式和图片处理的整体流程,并对QT/E 内核进行了 优化。结果表明,QT/E 在结构上优化空间较大。 关键词: QT/E 、QT 、嵌入式GUI Abstract:This article compare QT/E with other GUI toolboxes in the performance, the structure and the working costs, analyzed the merit and the deficiency of QT/E, carried on the analysis to the QT/E internal mechanism, included the c-s structure, the process communication and so on, At last some optimization strategy were presented. Key words: QT/E、QT、embedded GUI