The invention discloses a novel special shape-maintaining knapsack for students. The novel special shape-maintaining knapsack for the students is simple in structure, practical, beautiful, small in size, light in weight, safe, comfortable and portable, has the wear-resistant effect, and can be changed into a spinal column orthopedic corsage or cape; according to the novel special conformal knapsack, large and small book interlayers, umbrella and cup positions and a knapsack bottom surface cover are connected together; the inner and outer structures of a box body both can be detached entirely, and the back can be quickly lightened and changed into an orthopedic waistcoat; the knapsack has the specifications of girl, boy and general types; two pairs of large and small cloth pockets are arranged on left and right shoulder straps or bearing cloth, and connected by use of longitudinal and transverse fasteners; at the waist and back parts, a hard gravity center template is covered with a mesh fabric and connected or linked to the back surface of the knapsack; the back surface of the knapsack is straight and upright, air-permeable, and fitted with the back of a human body into the S shape of the vertebra; soft cushions are arranged at the positions of the two shoulders to balance the gravity so that the gravity can be dispersed on the shoulders, the waist and the back of the human body; as a result, the spinal column can develop normally, the posture of the back can be corrected, dynamic and static back orthopedics can be achieved, the shape of books can be maintained, abnormal humpback and edge curling can be prevented, and lateral bending of teenagers due to gravity slipping and instability of the knapsack can be prevented; the knapsack is specially suitable for students, military trainees or adults, and is high in popularization value.