The extraordinary meeting -- scheduled for Thursday at the request of the Palestinian leadership -- will bring together Arab foreign ministers via video conference, rather than a face-to-face meeting, due to the global coronavirus pandemic, AFP reported.
The Arab League's deputy secretary Hossam Zaki said the ministers will "discuss in their virtual meeting providing political, legal and financial support to the Palestinian leadership to confront the Israeli plans".
It comes after Israeli Prime Minister Benjamin Netanyahu and his political rival Benny Gantz signed a deal for a unity government that could accelerate the premier's plans to annex parts of the West Bank in the coming months.
Those Israeli plans -- while subject to caveats, including the need to maintain "regional stability" and uphold the peace agreement with Jordan -- have drawn wide criticism including from the United Nations and the European Union.
Arab League chief Ahmed Ahmed Aboul Gheit last week sent a message to UN Secretary General Antonio Guterres warning against Israel's plans, saying they risk "igniting tension in the region".
He also accused Israel of "exploiting the world's preoccupation with the novel coronavirus to impose a new reality on the ground".
Israel occupied the West Bank in the 1967 Six-Day War and has since extended its control by expanding its settlements there.
On Wednesday, US Secretary of State Mike Pompeo said a decision regarding the annexation of West Bank territories was up to Israel's new unity government.
Earlier this year, the US unveiled a controversial Middle East peace plan that would allow Israel to retain control of Jerusalem al-Quds as its "undivided capital" and annex Jewish settlements on Palestinian lands including in the West Bank.
Arab states rejected US President Donald Trump's plan, saying it favored Israel and failed to grant Palestinians their minimum rights.
The Palestinians as well as the European Union have likewise criticized the plan.