No country has the right to teach or point the finger at other nations on human rights issues while ignoring its own problems, Chinese Foreign Minister Qin Gang said.
Qin made the remarks that took in Hong Kong matters through video in Beijing at a high-level segment of the 52nd session of the United Nations Human Rights Council in Geneva.
"The acts by some to politicize, weaponize and instrumentalize human rights issues should be opposed," Qin said.
"The Human Rights Council should be a stage for constructive dialogue and cooperation rather than an arena for political manipulation and bloc confrontation."
On Hong Kong, Qin said since the national security law implemented in Hong Kong meant the SAR's status in international finance, maritime matters and trade had been enhanced.
The SAR is also among the world's top rankers in areas like the rule of law, safety and business environment, he added.
"The legal rights and freedom of Hong Kong residents have been under better protection, and Hong Kong is now at a new stage where it has restored order and is set to thrive.
"We will unswervingly, comprehensively and accurately implement one country, two systems and ... maintain Hong Kong's prosperity and stability, and Hong Kong will have a better future."
Meanwhile, the Hong Kong administration slammed "untruthful and biased" remarks made by British Foreign Secretary James Cleverly at the council on Monday.
Cleverly said independent media have been closed under the national security law.
"The right to freedom of speech and assembly guaranteed in Hong Kong's Basic Law has been eroded," he added. "Those who speak out, including journalists or businessmen like Jimmy Lai, have been arrested."
Cleverly said London called on Hong Kong and China authorities to uphold the Sino-British Joint Declaration and to implement UN recommendations.
A SAR spokesman said Cleverly's remarks about the national security law were "untruthful and unfounded" and constituted "political smearing and fact twisting."
He also said Cleverly ignored the fact the implementation of the security law "enabled the livelihood and economic activities of the Hong Kong community at large to resume as normal."
"Clearly, this is hypocrisy out of political motivation with double standards, and a despicable maneuver with politics prevailing over the law."