Khrushchev was Stalin's right-hand man during his lifetime, and he was also very obedient to him and was particularly good at slapping his ass. But his heart had long hated Stalin to the bone. After Stalin's death, a new president was needed. At this time, Khrushchev also had to compete with Beria for this highest position.
The Soviets had always been violent and crisp, and Khrushchev finally sat on the throne in peace after exhausting all means to put Beria to death. But the Stalinist model at that time was already deeply rooted, and he found that after he came to power, he seemed to be unable to do anything, did not listen to commands, and did not seem to have any real power. His previous image was also obedient to Stalin's direction, and he dropped his foot with a stone. To change his deep-seated consciousness, he needed to do something.
In fact, the Stalin model at that time did not apply to the Soviet Union in peacetime, when the economy was very bad and the people did not have a good life. He may not have been the only one who wavered the Stalin model. But in this atmosphere, no one could argue against Stalin when he died. Khrushchev was also such a person in front of people, but he was only hindered by the promotion of business, and now he cannot go on like this. So he very decisively sent someone to dig up Stalin's grave and bury his body under the kremlin's feet.
This move, though very stupid, seems to have played a little role. Expressing his position has also awakened some people, and the whole country is like an old machine that has finally begun to operate slowly. Khrushchev achieved this goal. In order to build national confidence after taking office, you must do this, breaking the cult of personality, in order to move forward.