johnmather
Does the render farm have Houdini and the Houdini Engine for Maya plugin installed? If not, the particles will not be generated.
Yes, they does have.
Few hours ago, I got a mail from the render farm service personnel, they told me that my Houdini particles are exist, but they're seems too small in the scene. Then, I called to mind immediately I was minified particles' scale in Houdini, and enlarged them in Maya, Maybe that's the true reason why my particles didn't rendered.
At least, my problem was solved, but still thanks for your concerning.