TJ Jackson -- The Perfect Guardian for Michael Jackson's Kids

A judge just appointed TJ the temporary guardian of Michael Jackson's three kids and suspended Katherine Jackson's guardianship.

There's a reason TJ Jackson had a lawyer prepare legal papers to make him the temporary guardian of Michael Jackson's kids -- he has already partially assumed that role ... and he even has the Kim Kardashian stamp of approval.

TMZ broke the story ... TJ became alarmed when Katherine Jackson -- the current legal guardian -- disappeared for more than a week.

Jackson sources tell us ... TJ -- the 34-year-old married son of Tito -- has had a strong connection to Paris, Prince and Blanket for years, but was especially comforting after MJ died.

One example ... at the Michael Jackson tribute show in Wales, Katherine was by herself in a private area, far from the kids. TJ was in full dad mode, helping Blanket tie his shoes, helping Prince tie his tie. He made sure the kids were fed during the concert, which lasted for hours.

Kim Kardashian, who dated TJ for 4 years, tells friends, of all the Jacksons ... TJ was the closest to Michael and his kids. She says TJ had a "father-like" relationship with Michael's kids, adding, "He's a very honest and trustworthy person and everyone knows he'll do the right thing."

Paris, Prince and Blanket adore TJ and are behind the temp guardianship move, and that's something that will weigh heavily with the probate judge.