An disassembling tool having at least two cams has a bolt having a connecting knob at one end and a threaded section formed at another end, the connecting knob having a first through aperture, a nut screwed onto the threaded section; a tightening cap covering the connecting knob and comprising two second through apertures corresponding to the first through aperture; an axel having a head portion and another end disposed through the first through aperture and the second through apertures, a round shaft formed at a middle section of the axel axel and coaxially pivoted with the first through aperture, a first control section and a second control section having an eccentric shape formed on two ends of the round shaft, and the first and second control sections respectively and synchronously driving the second through apertures; and a control handle used to control rotational movement of the axel.