The wave of conjoint experiment research has been rising in top-tier international public administration journals， tapping the great application potential of conjoint experiments. However， domestic public administration scholars pay little attention to the conjoint experimental method. The lack of application of the conjoint experiment restricts its promotion and dampens disciplinary communication and cooperation internationally. This study conducts a descriptive literature review of 62 conjoint experimental studies published in the mainstream public administration journals， revealing their publication trends， topics of interest， content characteristics， authors' region affiliation， and technical details. Subsequently， this study introduces the rationale and characteristics of conjoint experiment， as well as its application conditions related to the type of dependent variable and the numbers and levels of independent variable. Next， this study demonstrates the execution of conjoint experiments in R language through two examples. In the end， this study offers insights into the application prospect of conjoint experiments in public administration.