This is Libyan Arabic conversational speech dataset ,which is collected over Android and iOS devices. The corpus contains 50 pairs of Libyan spontaneous conversational speech, which were from 100 speakers. For this collection, 2 speakers of each group performed the recording in separate quiet rooms. 21 topics were contained in this dataset. The audio duration is about 118.5 hours and the pure recording time is about 56.0 hours, including the reasonable leading and trailing silence. The total size of this dataset is 12.7 G.