I mean, it’s more of a totalitarian dictatorship because communist nations don’t have capitalism and we all know how well that turned out for the soviets. But China does have a capitalist economy because there are low, medium, and high class citizens depending on the extent of their wealth.
Totalitarian regimes stay in political power through rule by one leader and an all-encompassing propaganda campaign, which is disseminated through the state-controlled mass media, a single party that is often marked by political repression, personality cultism, control over the economy, regulation and restriction of speech, mass surveillance and widespread use of terror.
China is literally all this except the terror part.