The studying of the system of constitutional reform, which is an important part of constitutional systems, plays a great role in the practice of establishing, perfecting the system of constitutional reform, and directing the reform of constitution.

The thesis analyzes the concepts of idealistic modification and institutional modification and tells the reasons of the modification and its perfection.

An analysis of development of China s social security by examining the constitution formulating and amending;

To build a socialist country governed of law has been one of the main tasks for the political and judicial reform in China in recent years,and to construct a socialist constitutional system is the main task for the building of the socialist country,for which to improve the people s law-awareness is one of the important methods.

Meanwhile,as a legal system,it has close connection with the continuous improvement of constitutional system of .

Thailand appears out under constitutional government system interactive being not an economy factor in king,religion,nation,troops,political party etc.