A man who became wedged between rocks while collecting bat droppings in the Cambodian jungle has been rescued after being trapped for almost four days.

Key points: Police said the 28-year-old slipped while trying to retrieve his flashlight which had fallen

Police said the 28-year-old slipped while trying to retrieve his flashlight which had fallen Mr Bora's worried family began searching for him when he didn't return after three days

Mr Bora's worried family began searching for him when he didn't return after three days About 200 rescue workers carefully extricated him by destroying bits of the rock that had pinned him

Police said Sum Bora, 28, slipped on Sunday while trying to retrieve his torch, which had fallen in the small rocky hollow.

Bat droppings — known as guano — are used as fertiliser and sold for supplementary income by poor farmers, who sometimes try to attract bats to their property.

Mr Bora's worried family began searching for him when he did not return after three days, Cambodia's Fresh News reported.

His brother found him and alerted authorities to his location in the Chakry mountain jungle in the north-western province of Battambang.

About 200 rescue workers carefully extricated the trapped man by destroying bits of the rock that had pinned him in an effort that took about 10 hours, Police Major Sareth Visen said.

Mr Bora was freed at about 6:00pm on Wednesday looking extremely weak, and was taken to a provincial hospital, the police official said.

About 200 rescue workers carefully extricated the 28-year-old. ( Battambang Province Authority Police via AP )

The rescue was spearheaded by specialists from Rapid Rescue Company 711, which is connected to Prime Minister Hun Sen's elite military bodyguard brigade.

The group also was prominent in rescue efforts when a seven-storey building collapsed in June in the southern city of Sihanoukville, killing 24 people.

Cambodia is one of the poorest countries in the world, with 35 per cent of its 15.2 million people living in poverty, according to a United Nations Development Program report last year.

AP