Yes you can buy burial insurance on your parents, although some life insurance carriers may require that the insured pay the premiums.  

Otherwise, you as the owner of their burial life insurance policies may be able to pay the premiums.

It is usually fine for the adult child to own the insurance policy and be the beneficiary of the policy, too.  

Most of these burial insurance policies do not require your parents to take any medical exam, but may require the proposed insured to answer some health questions in order to qualify.

In addition, there may be some age limitations on who may qualify for burial insurance plans.

Learn more about how to buy burial insurance for your parents.