Abstract: A vacuum osmosis and solidification forming machine mainly comprises a forming chamber, a compressible hydraulic cylinder, a closed hydraulic cylinder, and a support frame. A solidifying material A and a pending solidification material B pre-dried and mixed uniformly in pre-determined dose ratio are guided into the air evacuated empty forming chamber to meet with a foggy liquid stabilizer or assistant. So that, the materials A, B are contacted sufficiently with the stabilizer for being thoroughly moistened by the capillary phenomenon and compressed to a minimum volume for being solidified.