Fabricated building board with interior capable of being stored

The utility model discloses an assembly type building plate capable of being stored inside, which comprises a splicing clamping plate, a sliding sealing plate, a first clamping plate, a first fastening threaded column, a second fastening threaded column and a second clamping plate, and the edge of the end face of the inner side of the second clamping plate is uniformly provided with fixed insertion clamping holes; fixed inserting clamping columns are evenly and fixedly installed on the edge of the end face of the inner side of the first clamping plate, splicing clamping plates are symmetrically and fixedly installed at one end of the first clamping plate and one end of the second clamping plate, and splicing clamping grooves are symmetrically formed in the other end of the first clamping plate and the other end of the second clamping plate. A sliding sealing groove is formed between the upper end of the first clamping plate and the upper end of the second clamping plate. In the using process, the spliced type