In the medieval times, Mokroluh was a vassal village and it belonged to the estate Smilno-Makovica. Since 1471 Mokroluh became a property of the city of Bardejov and during the times of Austro-Hungarian monarchy village belonged to Šariš County.
The name of the village changed several times over the course of the centuries. In 1277 it was called Mokurlang, in 1320 Saarpotok, in 1773 Mokroluch, in 1920 Mokroluky and since 1972 Mokroluh. The oldest known seal of the village comes from the second half of the 19th century. It depicts a tree growing on the ground.
In the past Mokroluh was an agrarian village; its inhabitants worked the land, raised cattle and produced shingles (sindle), spinning wheels (kolovratky), and wooden tools. The 1355 report mentions a village mill, confirming that the population grew cereals. In the 1330’ the first church was built in Mokroluh and it has its own pastor. At the end of the 16th century, Mokroluh was a medium–sized village with a vassal population only. The village was caught in a great fire in 1723; however shortly after the fire there were already 52 new homes built. Village artisans soon included blacksmiths and wheel makers. In the middle of the village on a relatively busy road, there was built a blacksmith and carriage workshop. It was a large building used for changing, resting and treating of the horses pulling carriages. The carriage workshop became popular among riders (rurman) because it was also an inn. A replica of Mokroluh's carriage workshop today stands in the open–air museum in Svidnik.
There are only a few old buildings remaining in the village – the Roman Catholic Church from 1772, the chapel from 1826, and the Lutheran bell tower from 1933. Only a few original wooden houses have been preserved and are now slightly altered with revised and redesigned roofs. Several classic wooden and clay storehouses (sypanec) today remain unchanged since they were constructed. Some of them were transformed into holiday cottages.
Modern development began after the liberation of the village 20 January 1945. The citizens themselves repaired a destroyed bridge. Electricity was established in 1956 and in 1958 the first phone line was introduced. In 1959, a single agricultural cooperative (JRD) was created by force. On the foundation of the old carriage workshop a new culture house was built between 1948 and 1952. In the second half of the 1950’ a municipal cinema, library, and amateur theatre led by the local teachers were established there. Today, the cinema does not work, but the library is active, and so is a Mokroluzan folk group, which preserves folk music and dramas from the lives of our ancestors.
The municipality lies in an altitude of 324 metres and covers an area of 7.947 km². It has a population of about 715 people.