Term life insurance is in force for a specified amount of time: usually 10, 15, 20 or 30 years. At the end of the term, your coverage expires and you will need to either convert your policy to a permanent life insurance plan (if available) or purchase a new policy for a new term. To counter the drawback of an expiration date, you will find that term life insurance is somewhat less expensive than permanent life insurance.
What you’re trying to accomplish by having a life insurance policy. Are you insuring your life so that when you pass away your children will be able to go to college and your spouse will be able to pay off the mortgage? If so Term life insurance is best suited to address those needs.