Does the refusal of American tourist visa affect immigrant visa?

The refusal of American tourist visa will not affect immigrant visa.

A tourist visa is different from an immigrant visa. Most of the reasons why non-immigrant visas are rejected are because the applicant has an immigrant tendency. If so, it will not affect your future immigrant visa. On the other hand, if the tourist visa is suspected by VO or the confirmation materials are forged, the credibility will be affected and the immigrant visa will be affected to some extent.