A polymerizable compound having high polymerization reactivity, a high conversion ratio and high solubility in a liquid crystal composition, a polymerizable composition containing the compound, a liquid crystal composite prepared from the composition and a liquid crystal display device having the composite are shown. The polymerizable compound has three or four rings in a serial arrangement and not being mutually condensed, and has three or more polymerizable groups among which at least one is bonded with a ring which is not an either terminal of the three or four rings. The polymerizable composition contains the above polymerizable compound and a liquid crystal composition. The liquid crystal composite is prepared from the above polymerizable composition, and the liquid crystal display device has the liquid crystal composite.