Synonyms are words that have similar meanings. Both "queshao" and "quefa" are synonyms. Although the two words have similar meanings, they are used differently. Therefore, Mandarin learners often experience errors in using this two words. To find out how the condition of mastery of the 2018 students of the Mandarin Education Study Program FKIP UNTAN against the synonyms "queshao" and "quefa", the author uses the test method to determine the condition of mastery and analyze student difficulties. The results showed that students had a good understanding of the synonyms "queshao" and "quefa". The percentage of correct answers for the word "queshao" is 62.93% and the percentage of correct answers for the word "quefa" is 54.61%. from the results obtained, it can be seen that they have better mastery of the use of the word "queshao" than the word "quefa".
