I'm assuming here that you mean linking to your tutorials as part of an answer to a question asked. You can link to your tutorials, yes. However, there is a big "but".
Your answers here will have to be self-contained. That is, even if you didn't include the link to your tutorial, your answer should still clearly answer the question. This to prevent that your answer will become useless or invalid should the link ever go dead.
If your answer suffices in that regard and you want to provide additional (more detailed) information by linking to your tutorials, you are free to do so.
Even with that in mind, be careful. If every answer you post has a link to a tutorial of yours, and its relevance to the question is not immediately clear, you might run the risk of users thinking you are here to primarily promote yourself. This might result in the occasional flag or even deletion of an answer. (This whole issue has been hotly debated here on Meta on various occasions). So try to give preference to answering the question asked rather than promoting your own material.