Mitsubishi Group is a loose entity composed of companies after the collapse of the former Mitsubishi chaebol. Mitsu in the name of Mitsubishi stands for "three", while Bishi stands for "water chestnut". Mitsubishi Group has a history of more than 100 years, especially after Meiji Restoration, Mitsubishi group began to enter the real sense of development. Then Mitsubishi began to engage in mining, shipbuilding, banking, insurance, warehousing and trade, and then paper, steel, glass, electrical equipment, aircraft, oil and real estate. Up to now, Mitsubishi has established a series of enterprises, which play an important role in the process of Japan's industrial modernization.