According to the official WAFA news agency, Abbas has extended the lockdown by one month starting May 5, Anadolu Agency reported.
With the decree, the lockdown has been extended a third time.
The Palestinian government initially declared a 30-day lockdown on March 6 after coronavirus cases were discovered in Bethlehem and Abbas decided to extend it for another month on April 3.
Palestinian Health Minister Mai al-Kaila said in a statement that 10 new cases have been confirmed in occupied Jerusalem al-Quds and the West Bank.
The number of cases rose to 170 in Quds and to 362 in the West Bank and Gaza.
Since first appearing in Wuhan, China last December, the novel coronavirus, officially known as COVID-19, has spread to almost every country and region, with the US and Europe the hardest-hit areas.
More than 3.6 million cases have been reported worldwide, with the death toll surpassing 252,000 and more than 1.2 million recoveries.