Modular building platform and assembly method thereof

A building, comprising:

• a) at least two prefabricated building structures;
• wherein each of said at least two prefabricated building structure comprises:
• i) an upper floor slab, comprising at least one column, each of said at least one column comprises a movable connection end and a free end;
• ii) a lower floor slab, comprising at least one column slot, each of said at least one column slot positioned to correspond to said movable connection end;
• iii) a spacing slab, comprising a set of guide rails;
• wherein said spacing slab is positioned between said lower floor slab and said upper floor slab;
• said at least one column is initially in a horizontal position;
• when said upper floor slab is raised, said at least one column to adopt an upright position when said free end is guided by said set of guide rails into a corresponding column slot among said at least one column slot;
• b) partition components;
• wherein said upper floor slabs and said lower floor slabs of said at least two prefabricated building structures are connected at connections to form a single floor;
• said partition components divide said single floor into a plurality of spaces;
• wherein said at least two prefabricated building structures further comprise interior wall slide rails fixed on said upper floor slabs or lower floor slabs;
• and said partition components comprise interior walls;
• wherein said interior wall slide rails are configured to guide said interior walls.