The multifunctional folding table includes a board member, a first support member, and a locking member. The board member is hinged with first support member. The first support member is joined to a wall surface. When the multifunctional folding table is unfolded, the board member is perpendicular to the first support member. A leg frame hinged to an end of the board member adjacent to the first support member rests against the floor. The locking member is disposed to a bottom side of the board member to reliably maintain and lock the board member's unfolded state.