Among the problems that exist in the field of teaching Persian to non-Persian speakers, we can mention inappropriate educational textbooks, which are one of the main sources of learning any language. Therefore, reviewing and revising the authored texts can help textbook writers to better achieve their educational goals and increase success in education with more practical texts. The purpose of the present research is to investigate whether there are any problems in Writing, grammar and vocabulary selection in the book Fors Tili book, which is one of the Persian language teaching books in Uzbekistan. In this research, Whole of the book is examined with the content analysis method, which is one of the qualitative methods, in terms of the degree of adherence to the rules of Writing, grammar and vocabulary selection. The findings show that the book has many Writing and editing problems, including non-observance of punctuation, continuous and separate Writing errors, non-observance of spacing rules, spelling mistakes, grammatical errors and non-observance of transliteration principles and book layout methods. We also see a lot of lexical errors, including slang, inadequate and contradictory expressions, slang, redundant repetition of words, use of foreign words and Arabic plurals. it was found that this book was compiled based on the personal experience of the respected author in teaching Persian language to Uzbek speakers. Fixing the flaws of the book and observing the scientific principles can make this book one of the good educational resources of Persian language, at least for the Uzbek speaking audience.