1, first of all, the square paper is folded crosswise lengthwise.

2, this time the lower left corner of the bottom left corner of the quadrilateral folded diagonally.

3, finished as shown in the picture. The remaining four corners are folded in the same way.

4. When finished, flip the origami model.

5. Fold the right bottom corner diagonally to the left along the crease.

6. Follow the same procedure on the other side.

7. When you're done, look at the picture. Flip the origami model.

8.Fold the origami model in half.

9, after completing all the folds, the origami model will be unfolded

10, after rotating 90 °, and then follow the previous steps to make another fold.

11, fold the two points A and B to the position marked below, folding a partial crease in the center.