谢谢大家，终于找到了办法。
这个虫子叫跳虫，对人体无害生长在潮湿环境。英文名叫springtails.
* Soap and Water - Washing with soap and water comes as the basic way to get rid or at least control springtails. The frothy mixture created by soap and water harms, not to mention drowns, torrents of springtails. The problem is, sometimes there are too many of them that a simple washing won't hold them off. Just apply this remedy when the pests don't appear in thousands.
* vinegar Vinegar - Vinegar, being a highly acidic liquid, will burn through the pests exteriors, making it a more efficient solution than soapy water. Given the sheer number of springtails, you may need to pour it three to four times for every torrent of pests that appear, which can be quite pricey. (For other uses of vinegar, read how to make household uses for vinegar)
* Bleach - Bleach is a slightly corrosive substance that can instantly kill springtails. Mix it with some water then flood the pests' source, which will probably eliminate hundreds, or even thousands.
* Improve Ventilation - Maintaining a cool temperature inside the house minimizes the appearance of moisture. Just leave your air-conditioner turned on when you're at home and apply insulation on the ceiling (Learn how to insulate a crawl space). The springtails will eventually switch locations, as they search for damper areas.
Each remedy works well against springtails, but if you are faced with a seemingly insurmountable number of them, better arm yourself insecticides.
Insecticides
https://ca.answers.yahoo.com/question/index?qid=20100318213425AA7s3qy
