The invention discloses an indoor carbonization cork-wood vertical device for cultivating plants, and belongs to the field of plant cultivating. The indoor carbonization cork-wood vertical device comprises a fixing box, a liquid storage tank, a water pump, a water supplying pipe, a water drainage pipe, a carbonation cork-wood cultivating frame and a water supplying tank, the liquid storage tank is located on the lower portion of the fixing box, the water supplying tank is located on the upper portion of the fixing box, the carbonation cork-wood cultivating frame is installed in a groove of the fixing box and located between the liquid storage tank and the water supplying tank, cultivating grooves are formed in the carbonation cork-wood cultivating frame, the water pump is arranged inside the liquid storage tank and communicated with the water supplying tank through the water supplying pipe, the water supplying tank is communicated with the liquid storage tank through the water drainage pipe, and a water sucking and guiding device for providing water for the plants is arranged between the carbonation cork-wood cultivating frame and the water supplying tank. According to the indoor carbonization cork-wood vertical device, the plants are cultivated through the excellent characteristics of carbonization cork wood, water adjustment is facilitated, and the survival rate and the ornamental value of the plants are improved; meanwhile, even water supplying is guaranteed, water supplying noise is lowered, the structure is simple, and cost is low; in addition, plant bonsais can be changed at will, and maintenance is convenient to achieve.