"We refuse any normalization with the Zionist entity because this emboldens it to go further in breaching the rights of the Palestinian people," El Otmani told his PJD party, Reuters reported.
The remarks came ahead of a visit to the region by Jared Kushner, a senior adviser and son-in-law to US President Donald Trump, and after the UAE and Israel struck a deal to normalize ties.
Morocco and Israel began low-level ties in 1993 after an Israeli-Palestinian peace deal was reached. But Rabat suspended relations with the Tel Aviv regime after the outbreak of a Palestinian uprising in 2000.
The UAE’s deal with Israel has drawn huge criticism in the Muslim and Arab world, with many describing it as Abu Dhabi’s betrayal of the cause of Palestine.