The incident took place near Budel village when a jeep carrying 12 people to Ramdevra temple in Jaisalmer district collided with another jeep travelling from Ramdevra to Jaipur, SHO Panchudi police station Chittar Singh said.
Three persons died on the spot while one died in hospital.
The deceased have been identified as Sharda (21), Bali Devi (38), Bhugana Ram (17) and Rachna (3). They were travelling in the jeep which was going to Ramdevra temple from Sunari village in the district, he said.