How to understand the modernity of ‘Modern Public Cultural Service System’？How to understand ‘the standardization and equalization of basic public cultural service’？How to understand ‘the socialization of public cultural service development’？How to understand ‘to form an legal entity management structure in public cultural service domain’？How to understand the ‘rule of law’ foundation of modern public cultural service system？These five questions are fundamental in understanding the rich content and basic characteristics of Modern Public Cultural Service System. This paper tries to apply the above questions with the real status of China’s public cultural development and present some basic understandings towards them.