The very concept of the principle of writing needs to be clarified in today's context. This is due to the fact that the principle of writing is a necessary moment for the correct solution of controversial issues in writing. That is, a number of things that were once contradictory in writing as a result of the chosen principle of writing, have now fully formed and become a habit that does not cause difficulties in writing. However, of course, it cannot be said that the complexities of the Kazakh writing system have been completely resolved. From this point of view, it is obvious that the controversial issue in today's Kazakh writing is associated with the writing of foreign words. Consequently, the main principle of modern Kazakh writing should be to be able to resolve contradictions in the correct spelling of these words. This indicates the need to determine the relationship between the basic principle and additional principles of the Kazakh writing in today's rules of writing the Kazakh writing. In this article, we are trying to touch upon such complex problems of Kazakh writing.