这是因为，政治权利是公民的庄严权利，罪大恶极者不能享有。刑罚不仅表现为对罪犯某种权利的剥夺，而且还包含政治上、道义上的否定评价。死刑犯尽管被剥夺了生命，在肉体上已不存在，但如不剥夺其政治权利，就意味着他的政治生命还存在。因为，自然生命死亡并不等于政治生命 This is because political rights are the solemn rights of citizens and can not be enjoyed by the most vicious crimes. Penalties are not only manifested in the deprivation of certain rights of criminals, but also include political and moral negative evaluations. Although being deprived of his life, the death penalty does not exist in the flesh, but his deprivation of his political rights means his political life still exists. Because the death of natural life is not equal to political life