This study focused on the new immigrant children’s reading comprehension on local knowledge in social studies textbooks. Specifically, this questionnaire of the study was self-compiled by researchers according to the elementary social studies textbooks for local knowledge in reading comprehension. It not only investigated the forth-grade students’ reading comprehension of new immigrants on local knowledge in social studies textbooks, hut also explored their reading comprehension difficulties. The study found that new immigrant children’s scores in the questionnaire about reading comprehension on local knowledge in social studies textbooks were slightly lower than the average children’s, but the overall scores of students in general were no significant difference in the case. Through careful analysis of the new immigrants of different nationalities, the scores of the American immigrant’s child were the best. The mainland Chinese new immigrants’ children were the second. Then, the Vietnamese and Filipino new immigrants’ children were the third. And, the Indonesian immigrant’s child was the least. Those children’s main difficulty in reading comprehension was that they lacked of the life experiences about text content. And, they knew little about the meanings of words in the textbooks, so they couldn’t understand the text content. Finally, the results of the study are for teachers, textbook editors, and follow-up researchers’ reference.