Step 1. How to draw Darth Vader.
Draw two intersecting lines on a piece of paper. Keep the horizontal line smaller than the vertical one.

Step 2. How to draw Darth Vader.
Draw a triangular shape above the horizontal line. This figure will give shape to the face of Darth Vader.

Step 3. How to draw Darth Vader.
Now draw a cup shape figure for the face. Draw a hat above the face.

Step 4. How to draw Darth Vader.
Follow the horizontal line to give shape to the shoulder. After that stretch curves downward to make the coat.

Step 5. How to draw Darth Vader.
Draw the inner coat. For that, draw a long pointed curve emerging from inside. Take the same curve upwards again and join it to the collar. Draw a belt in between the coat.

Step 6. How to draw Darth Vader.
Give shape to the legs. Make the thigh portion a little broader. Use curves to make it. Bring the curve down till feet and after that make the shoes. Give shape to the legs. Make the thigh portion a little broader. Use curves to make it. Bring the curve down till feet and after that make the shoes.

Step 7. How to draw Darth Vader.
Make the wrist of the hand peeping out of the coat. Draw a thinly pointed sword in the hands of Darth Vader.

Step 8. How to draw Darth Vader.
Make the back portion of the coat hanging till the foot.

Step 9. How to draw Darth Vader.
Outline the complete image and clear the guidelines

Step 10. How to draw Darth Vader.
Add curves over the coat to make it look shiny n heavy. Design the boots with slight curves. Add detailing to the hat. Shade the belt, the inner coat as well as the trouser.

Step 11. How to draw Darth Vader.
Draw a mask on the face and darken the eye portion to make the character look scary.

Step All together.