The objectives of the Research are: (1) To describe the writing tasks in English textbook entitled Bahasa Inggris 2013 Curriculum Textbook for the Tenth Grade Students of Senior High School Published by Minister of Education and Culture Based on Paul Nation’s Theory.(2)To find out whether the writing tasks provided in English textbook entitled Bahasa Inggris 2013 Curriculum Textbook meet the criteria of writing task as suggested by Paul Nation.In this research, the writer employs descriptive research. The descriptive research is the research to clarify or explain phenomenon. This research uses the content analysis. The method of collecting data is comparing method and analyzing document by selecting the writing tasks on the textbook entitled Bahasa Inggristextbook for the tenth grade students of senior high school that meet the criteria of writing task suggested by Paul Nation.The results of the research findings of writing tasks provided in the textbook meet the criteria of writing task suggested by Paul Nation. The criteria of writing task as suggested by I.S.P Nation, there are Experience Task (22,22%), Shared Task (11,11), Guided Task (59,25%) and Independent Task (7,40%). Based on the percentage whether the tasks provided in textbook are suitable with the criteria of writing tasks as suggested by Paul Nationproposed by Arikunto are 54, 17 %.The writing tasks in the textbook entitled Bahasa Inggris for the tenth grade students are categorized as good task because the writing tasks in the textbook meet the criteria of writing task as suggested by Paul Nationand this textbookis appropriate to be used by the students at the tenth grade students of senior high school.