The present disclosure relates to an apparatus for membrane distillation using a solar absorber, in which in the implementation of a membrane distillation process for producing treated water using a temperature difference between raw water and a coolant, raw water is heated using the solar absorber with improved heat collection efficiency, and through this, the treated water production efficiency of the membrane distillation process is improved, and the apparatus for membrane distillation using a solar absorber according to the present disclosure includes a raw water tank provided with a solar heat absorbing device to supply raw water heated by the solar heat absorbing device to a membrane distillation module, the membrane distillation module that produces treated water from the raw water through a membrane distillation process, and a coolant tank that supplies a coolant to the membrane distillation module and collects the treated water produced by the membrane distillation module, wherein the solar heat absorbing device is provided on an upper surface or a side of the raw water tank.
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