Open Slavery existed in the region of Palestine until the 20th-century. The slave trade to Ottoman Palestine officially stopped in the 1870s, when the last slave ship is registered to have arrived, after which slavery appeared to have gradually diminished to a marginal phenomena in the census of 1905. However, the former slaves and their children still continued to work for their former enslavers, and were reported to still live in a state of de facto servitude in the 1930s. Many members of the Black Palestinians minority are descendants of the former slaves.
 Palestine was a part of the Ottoman Empire between 1516 and 1917. 
 Palestine was close to the Red Sea slave trade, but also to the slave ports of the Mediterranean Sea, were slaves from the Trans-Saharan slave trade were imported via Libya and Egypt.
 The Ottoman Empire issued decrees to restrict and gradually prohibit the slave trade and slavery between 1830 and 1909, but these laws were not strictly enforced in the Ottoman provinces, such as Palestine and the Arabian Peninsula.
 In 1880, the Ottoman Empire conceeded to Britain the right to search and seize any vessel to Ottoman territories suspected of carrying slaves.
The British occupation of Egypt in 1882 seriously disturbed the import of slaves to the Mediterranean provinces of the Ottoman Empire, since a large part of the slave import had came via Egypt. 
Formally, the Ottoman Empire declared black slaves manumitted in 1889. 
 The last official slave ship arrived to Haifa in Palestine in 1876, after which the official slave trade to Palestine appeared to have stopped.
The end of the open slave trade also appeared to have resulted in the gradual death of slavery itself. In the 1905 census for Palestine, only eight individuals were officially registered as slaves. 
However, while no longer officially referred to as slaves, it appeared as if the former slaves continued to work for their former enslavers, as did their children.
 In the last decades of open slavery in Palestine, the origin of slaves appeared to have been similar to other Ottoman provinces at the time: a small minority were Caucasians (usually Circassians), but the vast majority of the slaves were of African origin, mostly from Ethiophia (Abyssinia) and the Sudan.
 Slaves were given tasks which were regarded as disdained and degrading to free Muslims, such as domestic servants, municipal services, industrial work, sex slaves (concubines), and farmhands and sharecroppers.
As commonly in other parts of the Muslim world, slaves were preferred to free employed people as domestic servants, since they were dependent on their employer and not loyal to their clan and their own families. 
 Female slaves were used as domestic servants in private households as well as concubines (sex slaves), while male slaves were used in a number of different tasks such as laborers, bodyguards, servants and attendants. 
 The sex slave-concubines of rich Urban men who had given birth to the son of their enslaver were counted as the most priviliged, since they became an Umm Walad and became free upon the death of their enslaver; the concubine of a Beduoin mainly lived the same life as the rest of the tribal members and the women of the family. 
Female domestic slaves lived a hard life and reproduction among slaves was low; it was noted that the infant mortality was high among slaves, and that female slaves were often raped in their childhood and rarely lived in their forties, and that poorer slave owners often prostituted them. 
 Women slaves were more rarely described by foreigners since women lived in harem seclusion, but female servants (slaves) were sometimes noted in passing, such as  Edward Robinson, who noted upon his visit to an Arab home in Jaffa in 1838: "Of the many females it contained, we saw none
except the mother of the family, who welcomed us at our entrance, and the Nubian slave who washed our feet."
 Male slaves are also known as poets to the Bedouin tribal leaders during the 19th- and 20th centuries.
William Hepworth Dixon noted slaves in various tasks Jerusalem of the 1860s, such as in his depiction of Jaffa Gate, when he mentioned "Yon negro dozing near his mule is a slave from the Upper Nile, and belongs to an Arab bey who lets him out on hire", and the servants in the coffee houses: “Enter this coffee house, where the old sheikh is smoking near the door; call the cafigeh, the waiter, commonly a negro slave; command a cup of black comfort, a narghiley [water pipe], and a morsel of live charcoal", and  "Saïd is a Nubian, a negro, and a slave; and like the mule and horses is the property of an Arab gentleman, not too proud to let his people and his beasts earn money by trade."
 Randal William MacGavock from Tennessee visited Ramla in the 1850s, described the custom regarding the children of the Palestinian slaves and compared it to slavery in the United States: 
 It was common to manumit slaves. However, a manumission rarely had true practical meaning, since freedmen normally simply continued to live in the same servitude as before. The American consul in Jerusalem, Selah Merrill, noted in 1885 the custom that manumitted slaves in fact continued to be slaves in practice:
 In 1920, Ottoman Palestine was formally transformed in to the British Mandatory Palestine. 
The British Empire, having signed the 1926 Slavery Convention as a member of the League of Nations, was obliged to investigate, report and fight slavery and slave trade in all land under direct or indirect control of the British Empire. The British policy was thus abolitionist, however in reality they were reluctant to interfere in cultural issues if they feared their interference could cause unrest. 
In the British report to the League of Nations for 1924, they reported that slavery existed in Transjordan but had ended in Palestine in the early 20th-century after the import of slaves had stopped.  
According to the British, the Palestina Bedouin tribes did own African servants called Abid, but that they now had the same rights as the rest of the tribe members and should be regarded as former slaves, and that the same term should apply to the African female domestic servants of the Arab noble families.  
When the League of Nations ratified the 1926 Slavery Convention, the British were expected to enforce it in their colonies and other dependent land. When the  British filed a new report to the League of Nations in 1926, they stated that slavery had no legal base in Palestine or Transjordan, and that it was therefore uneccessary for the British to ban it.
 In 1931, the police and the Welfare Inspector Margaret Nixon conducted an investigation on behalf of the British government regarding the enslaved servant girls of private Arab households.  The result of the investigation showed that after the slave trade to Palestine stopped, the African abid-slaves of the Bedouin tribes of the Jordan Valley sold their children (primarily their daughters) as maidservants.  
After the World War I, this custom started to be called employment, upon which the girls were sold as contract servants for a period between seven and twentyfive years, and in 1931, there were about 150 such girls in Nablus and about 150 more in the rest of Palestine.  
It was also noted, that the Abid-servants of the Bedouin tribes in the Jordan Valley, though they were now officially called former slaves, were in fact still slaves in practice, since they owned nothing, could only marry other Abid and they and their children had to serve their Arab tribe members without salary unless they escaped to another part of Palestine.  
The British wished to ban the practice, but since the Abid and their daughters appeared to accept the situation as it was and not interested in protesting or changing the practice, the British preferred not to interfere in the matter. The British limited themselwes with introducing the 1933 Employment of Girls Ordinance, which  made all contracts stipulating more than one year of service automatically illegal.
 In 1934, a report to the League of Nations acknowledged that slaves were still kept among the Bedouin shaykhs in Jordan and Palestine, and that slavery was maintained under the guise of clientage.
 Many members of the Black Palestinians minority are descendants of the former slaves.