The invention discloses a BOX tent which comprises a base plate, a frame which is arranged on the base plate as well as a tarpaulin and a filling interlayer which are arranged in the frame, wherein the frame comprises two border components which stand at the front end and the rear end of the base plate; each of the border components comprises an I-shaped tent sectional material, the I-shaped tent sectional material comprises a connecting wall, a first side wall and a second side wall, the two ends of the connecting wall are respectively fixed to the first side wall and the second side wall, and a positioning groove is arranged on each of the first side wall and the second side wall; the filling interlayer and the tarpaulin are paved between the two border components; the tail end of the filling interlayer is located between the first side wall and the second side wall; the tail end of the tarpaulin is clamped into the positioning grooves. When in assembly, the tail end of the filling interlayer can be accommodated in a space between the first side wall and the second side wall on the side of the connecting wall, so that the filling interlayer can be paved between the two border components, therefore, the performances of convenience in heat preservation, heat insulation and sound insulation of the BOX tent can be improved due to the characteristics of the filling interlayer, and consumers can have comparatively good use experience.