The service trade of international education is a profound reflection of the strength of competitiveness a nation's education has. Since China's accession to WTO, domestic education industry gradually started to present itself to the service trading market. Education service trade has greatly evolved with an increasing amount of education service import and export owing to such consumptions by Chinese students studying abroad. Graduate education in some developed countries is an early bird in this line of industry and has developed fully-fledged systems of its own over the years. Apart from what those systems have in common, different education systems and scales all have their own characters.By absorbing the advanced experiences of the advanced education service trade, a path of development for the education service trade would be found, which is suitable to China's actual situation. In hope of finding a new path for the development of education service trade suitable for China's situation, advanced experience in the trade should be absorbed. In order to improve the status of the Chinese service trade and the export competitiveness, the frame of the trade's evaluation system should be constructed. These suggestions aim to contribute to the development of the education service.

With the progress of modernization and improvement of civil life quality, the average national life expectancy keeps extending. Along with it came forth challenges concerning an aging population. In comparison to developed countries like Germany, the trend of China's growing domestic aging population fits the natural law in regards to the development of population. This article adopts the method of case study and comparative research in respect of the current situation of China's aging population, to analyse the development process of the reform of the retirement system in developed countries, especially Germany, to further explore certain laws in China in search of solution to an aging society, and finally to put forward numerous feasible suggestions for the healthy development of the nutrition system.