This historical documentary thesis presents a summary of parliamentary relations between the Legislative Yuan of the Republic of China (Taiwan) and the National Assembly of the Republic of Nicaragua during 2010-2015. The information was in different Taiwanese and Nicaraguan media. Information on historical diplomatic relations between the Republic of China and the Republic of Nicaragua is also provided; the definition of parliamentary diplomacy is explained. Also there is a summary of both legislative powers as well as their respective parliamentary diplomacy; a chronology of diplomatic relations between the two countries, speeches and congressional resolutions on parliamentarian diplomacy are presented in Annex. It is intended that all information provided in this research will be useful for strengthening parliamentary relations between the two countries.