"The camels were rescued from a truck in Lathi area last evening during a checking on Jodhpur-Jaisalmer road. They were being smuggled to a slaughter house," SP Rajiv Pachar said.
Those arrested were identified as Ahsan Ali, Momin, Arif and Adin Khan, all residents of Uttar Pradesh, he added.
Camel is one of the two state animals of Rajasthan.