Cambodia's new leader Hun Manet pledged Thursday to make the impoverished kingdom a "high-income country" by 2050 while boosting food security and access to healthcare.

In his first cabinet meeting on Thursday, Hun Manet pledged wide-ranging economic reforms aimed at making Cambodia a "high-income country" by 2050.

"The next 25 years will be a new cycle for Cambodia," he said in a televised speech.

Hun Manet said the new strategy included improving healthcare and education, as well as addressing climate change.

He also layed out a goal of "crisis-resilient economic growth of around seven percent per year on average", as well as reducing poverty rates, stressing that food security was also a priority, stressing that the aim is to leave no Cambodian citizen behind.

Access24 reports that Lawmakers endorsed Hun Manet, the eldest son of long-time ruler Hun Sen, as the new prime minister on Tuesday, sealing a dynastic handover of power after last month's one-sided polls.

Hun Sen's Cambodian People's Party (CPP) won all but five of 125 lower house seats in the July election, which was widely dismissed as a sham after the main opposition party was barred from running.

The new government includes a number of his relatives and several children of Hun Sen's allies in top jobs.

Hun Sen's youngest son Hun Many is the civil service minister and his nephew Neth Savoeun will be deputy prime minister.