1. First, prepare the green walnuts to be peeled, and it is best to wear banana gloves before peeling, as shown in the figure.

2. Next, draw a knife vertically on the green walnut with a knife, as shown in the figure below.

3. Then you need to draw a knife horizontally, so as to draw a cross, as shown in the figure.

4. You can gently peel off the green skin of the green walnut with a knife, as shown in the figure below.

5. It is best to completely remove the green skin of green walnut, as shown in the following figure.