The invention discloses multifunctional combined furniture. The multifunctional combined furniture comprises a sofa bed head, a bed head writing desk and a tea table; a sofa bed head cushion and a back cushion are placed on the sofa bed head, bolsters are arranged on the back cushion in a leaning mode, and armrests are arranged at the two sides of the sofa bed head, fixed to the sofa bed head through pin boards and connected with the sofa bed head through armrest hinges. The multifunctional combined furniture is ingenious in concept, small in occupied area and suitable for a youth apartment and other small-space houses and can achieve multiple functions of a double bed, a single bed, a sofa, a tea table, office desks and chairs.