This study reviews the results of existing research of passive construction in the middle and modern Korean period into seven issues, and suggests future tasks. The seven issues are as follows: 1) Was there a passive verb in the period before the late middle Korean?; 2) The background of the development of the passive verb that appeared in the late middle Korean period; 3) The analysis method of passive suffix; 4) The historical existence aspect of the double passive expression; 5) The historical usage patterns of lexical passive verbs such as ‘doeda’ and ‘nipda’; 6) Correlation between passive and causative; 7) The semantic types of passive sentences. If research results in various fields are accepted and used as a tool for observing historical data, and data from the early 20th century and manuscript data are included in the research subjects, new and diverse research results on passives can be produced.