The principal in my unit is always afraid that I will take my deputy seriously. As soon as the deputy assigns me a job, the principal will not let me do it. Why?

This principal position is squeezing out, suppressing and evacuating the deputy position. This is very clear!

Going a step further, it shows that there is definitely no confrontation between the principal and deputy positions. However, we have no way of knowing who is right, who is wrong, and who started it. However, as an insider, you should be aware of it, or you may be able to find clues by thinking carefully about what happened before and after!

But based on the details you revealed in just one sentence, I want to give you a warning: Stay away from this official position, at least keep your distance!

Reason 1: As a principal, he openly suppresses and excludes his deputy in front of his subordinates. This is a very bad, low-level, incompetent and brainless approach.

Reason 2: From the "why" in your question, it means that the work assigned to you by the deputy should be relatively normal, at least not for the principal. It can even be seen from your question that you think the work assigned to you by your deputy should be beneficial to the unit. In this case, for the official to obstruct him is completely selfish and puts his own selfish desires above the interests of the unit.

Reason 3: The main position is suppressing, ostracizing and sidelining the deputy position. There is no doubt about this. But you have to think carefully, what is the root cause?

Reason 4: You must be clear that your principal position requires you not to follow the work arrangements of your deputy position. It may appear that he treats you as one of his own, but in fact he is using you as a weapon! If what I expected is correct, the deputy's attitude towards you will definitely be far worse than before. If unfortunately I am right, it is because you have been used as a thug and accomplice without knowing it. When the official is engaged in internal fighting, I will tie you to the chariot. If he wins, you may not have a good outcome. But if he loses, you will be buried with him, or even used as cannon fodder for self-protection. He will say that you did not obey the deputy's work arrangements, or that you did not make it clear when you asked him for instructions and reports, causing misunderstandings, or even directly said that you did not know. Anyway, between you and him, no one will testify for you, and you can't produce any evidence. I suggest you carefully reflect and reflect on whether similar things have happened around this official position!