First time to china for business purpose. what visa to be taken for visit for how days i can stay.

If you for business , you should apply for a China F business visa, but to apply for this type of visa you must provide Invitation Letter of Duly Authorized Unit or Confirmation Letter of Invitation. If you have had a partner in China who can privide this letter for you, it's ok. otherwise, you may just apply for a China L tourist visa instead.

The duration of a single entry China visa is usually 30 days.