As refer to the photo, why the render photo still noise and blur. Is there any setting miss out? Anybody can advise how to solve it?
I see that you have enabled “Use local subdivs” in Global DMC. This means that Vray will take the subdivs values of the lights in order to decide how much noise is acceptable before it stops removing it. So in your case try increasing the subdivs of your lights. I haven’t used local subdivs in ages but as far as I remember 8 and 20 subdivs in most cases is way too low to produce a smooth and noise free image. So try something like 80 subdivs for the lights and see if it helps.
If things are still noisy, then most likely your materials also need higher subdivs. So if your cabinets have a material with blurry reflections, increase the reflection subdivs also. I would say 20 to 80 depending on how blurry the reflections are. The more blurry the reflections are, the more subdivs you’ll have to use for that material. The white floor looks to have blurry reflections so increase the reflection subdivs of the floor material in the range 20-80.
Last but not least, it seems that your materials are too bright, especially the floor. Very bright colors and lights that are too strong will make it very hard for Vray to clear the noise. Use more natural values for the lights and the materials. Generally, pure white objects shouldn’t have an RGB value in their materials that is over 180.
Let me know if this helped! 
Thank you for sharing your experience and advice. I had try some testing. While Vray 3.2 version, less noise and blur. But Vray 3.4 version, a lots noise and blur. The setting for both same, only DMS minor setting different (refer attached files) . Pls advise when using Vray 3.4, the parameter need to adjust to which level? Thanks all.
http://a360.co/2qf3noS
http://a360.co/2qeTjw2
http://a360.co/2qffH8k
Well, it’s pretty hard to tell without looking at the scene. I would highly recommend you read this thread: Cheatsheet: How to get a Cleaner image with SP3 - V-Ray for 3ds Max :: General - Chaos Forum It’s a very good ready and it will help you figure out why your images have noise and how to efficiently clean it up. I hope this helps!