GDP becomes a worldwide index to measure economic growth rate but it reflexes economic growth in pure quantity, The external quality indexes of GDP are mainly embodied in annual average development speed and dispersion coefficient of regional development each year, The internal quality indexes of GDP include expenditure components, revenue components, three industries components, factor contribution rate, consumption of energy, raw materials and so on. GDP comprehensive quality index evaluation system should be composed by using comprehensive GDP internal quality indexes and external quality indexes to make up single GDP index.