This essay introduces the basic characteristics of qualitative research,including its natural property,inductive method adopted,open character and wholism concept;the results of qualitative research are presented in a text form;and its commonly used methods include observation,individual interview and focus group discussion.

Three important ones are discussed in this paper: observation, interview, archival records.

2,the concept and location confirmed using the observation and interview method,3,information integrated and analyzed by means of omuke and uppa,4,research results\'transformation and output by using scenario and persona.

The observation method is a hypothetical and planned social investigation method for observers to testify some theories and to observe the society.

Sideline, as the starting point of shapes, is very valuable to paintings, and especially the intercourse of painting skill, style, observation method and shape in representationalism painting.

This paper focuses on two problems that teacher is worth paying attention to when guiding students to observe slice:one is the correct observation method,and another is training the science thinking habit.

Methods The MTT assay and the CPE method were separately used in the drug toxicity experiments to Hela cell of Mahuang, Huangqin and Ribavirin; the TC50 was calculated and evaluated by SPSS software, and analyzed by statisitical method.

On the observing method for model in traditional Chinese painting;