No,China is not democratic, moreover it is quite far from being democratic, because

no legal way exists for peaceful removal of the government;

there is no legal parliamentary opposition, a single political party runs in the elections, there are a few additional parties but they have no legal way to grab power, they operate under the direct supervision of the ruling party;

there is considerable terror (imprisonment of political opposition, labour camps);

there are no organizations established for fullfilling the role of “checks and balances”, the police and the judiciary system is directly controlled by the ruling political party;

the ruling political party appoints its own people for every important position;

civil resistance against the government is illegal;

decisions are made without or merely with formal involvement of the affected groups;

there is no freedom of press, the media is under direct control of the ruling political party;

personal freedom (freedom of speech, freedom of association, freedom of movement, religious freedom, freedom of family planning) is severely restricted in many respects.