Fabricated building house and construction method of fabricated building house

The invention discloses a fabricated building house and a construction method of the fabricated building house. The fabricated building house comprises a base, a wall panel, a roof plate and a skylight, wherein a mounting groove is fixedly formed in the upper end of the base, a notch is formed in the upper end of the mounting groove, the wall panel is arranged above the base, a connecting hole isformed in the bottom end of the wall panel, a first sealing block is arranged on the inner side of the wall panel, a second sealing block is arranged on the outer side of the wall panel, both the first sealing block and the second sealing block are installed on the base, and a mounting bolt is connected to the interior of the base in a penetrating mode. According to the fabricated building house and the construction method of the fabricated building house, a foundation installed in the fabricated building house is stable, long-time use is facilitated, potential safety hazards are reduced, theventilation effect is good