The invention discloses a pattern-changeable chair. The pattern-changeable chair comprises a chair (1), chair legs (2), a spiral column (3), a buckling hole (4), a sitting leaning cloth (5), a support belt (6), a sitting leaning cloth elastic belt (7), a limiter (8), a folding magnetic button belt (9), air cushions (10), a pneumatic-control switch (11) and a self-inflating self-deflating head (12). The pattern-changeable chair is characterized in that the chair (1) comprises an upper backrest and a lower cushion which are connected respectively through the support belt (6) and hinges to be closed or opened; the sitting leaning cloth (5) is connected with the upper backrest and the lower cushion; the rear part of the lower cushion of the chair (1) is connected with the limiter (8) of the angle of the upper backrest; three edges of the sitting leaning cloth (5) are connected with the sitting leaning cloth elastic belt (7); and air pipes of two air cushions (10) are connected with both ends of the pneumatic-control switch (11). The pattern-changeable chair disclosed by the invention is a creative teaching material valuable which is worthy of development, attractive, practical and convenient to store in a folding vertical way or a flatly placed way and invisibly changes the life of people.