Step 1: Prepare the needle and thread for sewing and tie the line segments into knots.

Step 2: Determine the position of the button to be sewn, thread the needle from the back of the cloth and go out from the front.

Step 3: thread the needle along the oblique hole of the button and go out from the back of the cloth.

Step 4: Repeat sewing at the oblique hole for 3-5 times along the previously stitched line.

Step 5: After fixing, the needle and thread return to the back of the cloth, and then find a diagonal button hole to pass through.

Step 6: Repeat the fixing of diagonal seam for 3-5 times, and finally form a cross pattern.

Step 7: After sewing the four-hole button, the needle and thread return to the back of the cloth.

Step 8: Tie the needle and thread in a fast knot, and then cut it out of the fabric interlayer.

Step 9: Four-hole buttons are sewn.

Note: Please choose the thread color for sewing according to the color of the button, and the reverse color is used here to see the operation clearly.