The utility model discloses a box capable of being deformed and unfolded, which comprises three deformation components hinged pairwise, each deformation component comprises a first plate body and a second plate body vertically connected to the first plate body, the first plate body is provided with a first edge and a second edge, the end part of the first edge is provided with a first convex part protruding towards the second edge, the second plate body is provided with a third edge, and the third edge is provided with a second convex part protruding towards the third edge. One end of the third edge is hinged to the first convex part, the other end of the third edge is provided with a second convex part protruding towards the first plate body, the second convex part is hinged to the end, away from the first convex part, of the second edge of the adjacent first plate body, the three first plate bodies are spliced into the same plane after the three deformation assemblies are unfolded, and the three deformation assemblies are combined to form a square box body. And an observation opening is formed among the three first plate bodies after the first plate bodies are combined. Therefore, the box capable of being deformed and unfolded has two forms, can be folded into a square box body, can be used for containing gifts and can be used for displaying articles after being unfolded, so that the individual requirements of modern people are met.