Qualitative research can provide interpretations of patients on experience, attitudes, beliefs and psychological changes of disease nursing, so it reflects the scientificity, humanity and ethicality of nursing science. How to assess and integrate findings derived from qualitative researches and use them in decision making is a key issue for researchers. This paper introduced how to evaluate the methodological quality and reporting quality of qualitative research, perform qualitative systematic review and meta-synthesis, and evaluate the quality of evidence of meta-syntheses using the ConQual tool.