The utility model relates to the technical field of sewing machines, in particular to a
sewing machine material frame which comprises an installation bottom plate, the top end of the installation bottom plate is connected with a supporting
assembly, the top end of the supporting
assembly is connected with a top connecting plate, the front end of the top connecting plate is provided with a sliding connection block, and a clamping fixing
assembly is arranged on the outer side of the supporting assembly. The top end of the clamping fixing assembly is provided with a fixing rod, the inner side of the fixing rod is provided with a
tower line sleeving fixing assembly, the top end of the fixing rod is provided with a screwing adjusting cap, the fixing position of a
tower line is limited through adjustment, and the lead adjusting assembly is arranged at the front end of a sliding connection block. The unfolding angle of the
tower line sleeving and fixing assembly is controlled, the tower line can be limited, adjusted and placed, the use effect is prevented from being affected, clamping connection of the clamping and fixing assembly is easy to detach, the adjusting wire assembly at the top end moves up and down to adapt to
machining environment adjustment, and the applicability of the equipment is improved.