Objective To analyze the failure in the box billet forming in the ceramic tile packaging process. Methods By calculating the stress during the process of box billet forming in the ceramic tile packaging process, a mathematical model was established for optimization of product design. Results The appropriate location of sucker ( L₁ = 315 mm,L₂= 105 mm) was obtained through calculation, which can improve the stability of box billet forming. Conclusion Practice showed that the stability of the product was greatly improved in the working process through the optimization, meeting the design requirements.