Hong Kong: Hong Kong leader Carrie Lam said she would not blindly obey the orders of Communist party leaders in Beijing, while admitting the government has no way to suppress skyrocketing prices in one of the most expensive property markets in the world.

Lam was sworn in by Chinese President Xi Jinping in July as the former British colony celebrated 20 years of Chinese rule under the principle of "one country, two systems", which promises the city a high degree of autonomy and freedoms not enjoyed in the mainland.

While a recent poll shows the new chief executive is more popular than her predecessor, some accuse her of being a puppet of Beijing amid perceptions of Chinese meddling in Hong Kong's affairs. Specifically, they criticise her for pushing an arrangement that will allow Chinese officials to enforce Chinese laws in a high speed railway station due to open next year.

Lam, in an interview with the government-funded RTHK, said she was accountable to both the Hong Kong public and Beijing, but she would not blindly obey the central authorities.

"Being accountable doesn't mean you have to do everything you're told," Lam said. "So you can't say you'll do whatever the central government (says).

"If the central government asks me to do something that I think is beyond what Hong Kong people can bear or against Hong Kong's developmental interests, then of course I have the duty to tell the central government and fight for a more favourable arrangement for Hong Kong."

Lam also said she did not plan to kick-start legislation for a controversial national security law in 2018, and urged people not to "demonise" it.

Asked about Hong Kong's red-hot property market, where prices have shot up more than 12 per cent and are expected to climb another 10 per cent in 2018, Lam said the government was helpless in reversing the trend. Reuters