The invention relates to a liquid phase heat exchange fluidized bed heat exchanger, and is mainly used for solving the technical problem that in the traditional technology, the tube side of an overhead heat exchanger of an atmospheric and vacuum distillation unit is prone to scale formation, and after long-period usage, the heat exchange effect is obviously reduced. The liquid phase heat exchange fluidized bed heat exchanger comprises a lower tubular box 1, heat exchanger column tubes 2, an upper tubular box 3, a solid-liquid separator 4, a downcomer 5, a solid particle tank 6, a liquid storage tank 7, a liquid circulating pump 8, a distribution box 9, lower edge casing pipes 10, a distribution plate 11, a distribution disc 12 and thin tubes 13. The outlet of the distribution box 9 is connected with the thin tubes 13, the heat exchanger column tubes 2 are connected with the upper tubular box 3, the upper tubular box 3 is connected with the solid-liquid separator 4, solid particles enter the solid particle tank 6 through the downcomer 5, and then return to the lower tubular box 1, and liquid enters the liquid storage tank 7, and is sent to the lower tubular box 1 through the liquid circulating pump 8. By employing the above technical scheme, the above technical problem is well solved, and the operation period of the overhead heat exchanger of the atmospheric and vacuum distillation unit can be prolonged.