Sutrak Nawakoaksorn, 31, was killed instantly.
Kathu Deputy District Chief Siripong Leeprasit told The Phuket News, “I was told about this at around 10.30am. He was in the digger and then a big rock fell down and crashed into the cab.”
Mr Sutrak’s body was taken to Vachira Hospital.
The crane belonged to Max Asset, which is the developer of The Valley.