There are term (temporary) life insurance plans and permanent life insurance plans for people over 70 years of age.
Term life for people over 70 may offer you coverage options lasting for a term of 5, 10 or 15 years depending on your age and health.
Permanent life insurance provides guaranteed lifetime protection no matter how long you live, as long as you pay your insurance premiums on time.
In addition, there are guaranteed issue whole life policies available for anyone who meets the age requirements (eg. 45-85) from the insurer.
With guaranteed issue coverage you won't have to take any health exam or answer any questions about your health. You are guaranteed approval as long as you meet the age requirements.
Here's how to learn more about life insurance for age 70 and over.