Abstract: To deepen the resarch on Soviet evolution,we should do two more jobs apart from further digging and sorting out relevant historical data.Firstly,we should establish a scientific guiding thought.Secondly,we should find out correct research method.In doing these two jobs,we should pay attention to the following aspects:1.Materialist method is the general principle to be observed in research;2.adheve to the method of historical analysis and persvere in Marxist world outlook in the judgment of value;3.differentiate main contradiction and secondary contradiction,stressing the objective analysis of the main causes and seeking the root of the evolution;and 4. do a comparative study with reference to other socialist countries.

Key words: soviet evolution, methodology, basic problems