Batik has attracted many people's attention because of its unique crack patterns. How to render this kind of handcraft patterns using inkjet printing technology is the present objective of this article. Through analysis of crack characteristics on handmade batik, an improved efficient algorithm of crack simulation was proposed based on distance transform. Firstly, the initial position of crack was determined by distance transform, secondly the spread direction of crack determined using gradient distance transform. Finally, the dyeing of cracks was simulated using Multiplicative Color Model to express the different features of cracks and the junction between old and new ones. Results of our experiments demonstrate that the proposed method can produce lifelike crack simulation, and the perfect image effects can be achieved by adjusting parameters.