The utility model provides a slant bottom plate structure includes the bottom plate at least, goes along with sb. To guard him the roof beam, fender post, grit, steel pipe, bracing and drawknot reinforcing bar in bags, it is provided the positive upper end of fender post to go along with sb. To guard him the roof beam to go along with sb. To guard him roof beam lower surface and fender post upper surface zonulae occludens, the right side that the bottom plate is provided the fender post to the bottom plate is through the drawknot reinforcing bar and go along with sb. To guard him roof beam and fender post zonulae occludens, said drawknot reinforcing bar one end and bottom plate zonulae occludens, other end embedding is fixed in the fender post, placed bottom plate and fender post space department are filled out to the grit in bags, the steel pipe is provided below the bottom plate right side to the upper end and the bracing zonulae occludens of steel pipe, the bracing is in the same place with the outer skin weld of bottom plate, the simple structure connects closely, makes the bottom plate below bear the soil layer and is difficult for the disappearance, does not have the construction joint, has guaranteed construction quality, easily uses widely.