Hello Gubing Wang If I understand the question correctly, you want to use the same shape of face highlighted on the image on the left to make a cut of the part in the image on the right? It looks like you have already created a sketch. If the surface is planar, then I would "Convert Entities" while in the sketch.
Then turn that sketch into a block and save that block for multiple use in the part on the right. If this is what you are looking for let me know and I can show a step-by-step if needed.