The invention relates to a method for shaping a suture grid cloth. In the method, two rows of small square cloth materials are sutured on a large square cloth in a mode of being staggered with each other at an interval of L so as to realize the purpose of forming grid patterns, thus the toughness performance of textiles is greatly enhanced, and the grid cloth can be used for manufacturing bags and other products which have high requirements on toughness and durability. The invention has the following advantages: the staggered grid patterns formed by suturing have strong stereoscopic impression, hidden suture line joints and excellent beauty impression; the holt melt adhesive bonding process is omitted, thus the formed grid cloth has the characteristics of thin thickness, excellent finished product texture and light weight compared with leather; the small square cloth materials can be bonded with no need of bonding, thus greatly reducing the processing cost, being more environmental-friendly and ecological and protecting nature; and the texture of the original cloth material is maintained, and the problem of the toughness and durability of the cloth material used for manufacturing bags is solved.