1, sewing pants, you must first find a good sewing thread similar to the color of pants, the sewing needle is not easy to be too thick, try to choose a thinner sewing needle. Thread a thin thread into a pinhole and tie a knot at the end of the thread.

2. Then, sew the trouser leg to be sewn a little, see the original seam mark of trousers, insert the prepared needle and thread from the back, and start sewing along the original seam mark.

3. It's best to stick a little on the inner side of the original stitch for each needle, and the needle sticking method on the left and right sides is the same.

4. When sewing one stitch, don't pull the thread too tightly, sew it loosely and evenly, and the number of stitches should not be too large (the interval between stitches is about 1.5mm).

5. When sewing the stay wire, pull it forward and upward smoothly, otherwise the seam will not be easy to flatten, and even the seam hole will be easily widened.

6. After sewing (about half an inch in length), gently tighten the sewing thread forward and upward along the force, and the sewn seam will be smooth and perfect. Finally, put the tail needle on the reverse side and tie the knot.