After finishing layout drawing in RF/Analog integrated circuit design, we get a circuit model which is closer to actual product compare to schematic. With the scaling down of semiconductor technology, the layout contains more and more parasitic and interaction effect in physical chips. So it is important to designers to do post-layout simulation, which can help to check the function and performance of their circuit block. Post layout simulation is a quality evaluation of circuit and layout design. Meanwhile , it is helpful to designers to have a deep understanding of their working. Designers can optimize their design according to the post-layout simulation results, which forms a close loop of analog circuit design with pre-simulation. Then the chip can be sent to tape out. So to be proficient in post layout simulation is a essential skill for RF/Analog designers.This slides present several techniques about how to do post-layout simulation efficiently in RF/Analog design. We can create a new cell view and put the netlist in it. We can also pack multiple post netlists as a model library. Or just use config to switch the schematic and post-layout netlist and so on. With these techniques, designers can be more efficient and relaxed in working. Every method has its own advantage, designers can choose them based on their own favor and habits.