A Chinese Communist Party official has accused some colleagues of allegedly donating money to the Dalai Lama, saying this severely undermines the fight against separatism.

Some Party officials have neglected important political issues and the country's anti-separatist struggle, the China News Service quoted Wang Yongjun, head of the Discipline Watchdog in Tibet, as saying.

"Some have even donated to the Dalai Lama clique, joined illegal underground organisations and provided intelligence to overseas organisations," Wang wrote in an article published on Monday in a Communist Party magazine.

A few Party officials, he said, were failing to "uphold their political integrity" and were "completely ignoring political discipline", Wang said.

"Such behaviour has affected CPC coherence and its ability to fight separatism."

Beijing considers the Dalai Lama, who fled Tibet in 1959 and lives in India, as a political exile who has attempted to split Tibet from China under the guise of religion.

A 2016 report issued by Tibet's Discipline Watchdog has linked 15 Party officials to alleged illegal overseas separatist organizations in 2014 who provided intelligence to the Dalai Lama, the China News Service said.