The invention discloses a silk cloth mildew-proof treatment device for textile fabric, and relates to the technical field of textile. The silk cloth mildew-proof treatment device for the textile fabric comprises a box body, wherein a heating plate is fixedly mounted on the inner wall of the box body, a rotating rod is rotationally mounted in the box body, fan blades are welded to the outer wall ofthe rotating rod, four mounting blocks are welded to the outer surface of the top of the box body, and every two mounting blocks form a group. Through cooperative use of the box body, the mounting blocks, rolling shafts, rollers, mounting plates, sliding blocks, springs, fixed blocks and mounting columns, silk can enter the box body to be soaked while being transported, a certain tensioning effect is achieved, the soaking effect is better, the error-tolerant rate during transportation is increased, accidents are avoided, the way is effectively paved for the next step of processing and mildew-proof treatment, the soaking speed is high due to soaking in transportation, and the phenomena of slight fading and length shrinkage of the silk due to overlong soaking time are avoided.