King Minos imprisoned Daedalus in the Labyrinth for several related reasons. Primarily, Daedalus was the inventor and architect of the Labyrinth that housed the Minotaur, and Minos wanted to keep the secret of the Labyrinth's intricate design from being revealed. Minos feared that Daedalus might reveal the way out or help others escape, especially after Daedalus helped King Minos's wife Pasiphaë in creating the mechanical cow that led to the Minotaur's birth and later aided Ariadne in helping Theseus escape the Labyrinth. This was seen as a betrayal by Minos, and so he imprisoned Daedalus and his son Icarus to prevent any further leaks or escapes. Additionally, by imprisoning Daedalus in the very structure he designed, Minos aimed to ensure that no one else would learn the secrets of the maze and that Daedalus himself would be trapped, eliminating the potential threat of his ingenious mind against the king's authority. In summary, Minos imprisoned Daedalus to protect the secret of the Labyrinth, punish him for his role in the Minotaur's creation and escape assistance, and to maintain control over the terrifying creature and the maze itself.