Abstract: Class Solidity has become the greatest threat to China’s modernization,which deeply influences social stability,sustainable economic development,and the construction of political civilization and spiritual civilization as well.Only by breaking power monopolization and resource monopolization,further perfecting market economic system,accelerating democratic and legal construction,reinforcing social security,and promoting equal education can we reduce the born risk of capital shortage and survival risk of the weak class.Also,we should try to provide equal opportunities for the weak class and speed up class mobility to realize social harmony.

Key words: social capital, equal opportunity, class solidity, survival risk, monopolization