The invention relates to a scoliosis internal fixation correcting device with a 4D effect and a production method thereof. The scoliosis internal fixation correcting device comprises a functional unit. The functional unit comprises a framework made of nickel-titanium-based memory alloy materials and a shell made of thermoplastic materials. The framework comprises a framework body, positioning holes distributed in the framework body and fixing devices distributed along the length direction of the framework body. The contour of the shell follows the contour of the framework. The shell wraps the framework. The shell is provided with positioning pins stably matched with the positioning holes.