Observation: Observation is a research method in which researchers conduct purposeful and planned investigations and records on the research objects with the help of sensory or auxiliary instruments to obtain relevant facts.

Literature method: Literature method is a research method to obtain the information of the research object by collecting, consulting and sorting out the existing relevant literature.

Investigation method: Investigation method is a general research method to obtain information about the present situation, causes and development of a preschool education phenomenon and problem through indirect means such as interviews, questionnaires and tests, so as to summarize the characteristics of the research object.

Experimental method: Experimental method is a research method that actively intervenes or controls the occurrence and development process of the research object according to the research hypothesis, and explores and verifies the causal relationship of educational phenomena by observing and measuring.