Abstract: The present invention relates to a combination lock for luggage cases or the like, and more particularly to a combination lock consisting of a staple unit and a hasp unit; said hasp unit comprising a base plate, a locking unit and a hasp; said locking unit comprising a securing mechanism, a combination lock and a body; securing mechanism being provided with a knob slidably fitted into said body, a leaf spring adapted to resiliently and selectively hold said knob in place when said knob is slid to "secure" or "release", and a sliding piece adapted to be slidably disposed between said latching piece and the bottom of casing of said combination lock, said sliding piece comprising an arm adapted to be connected with said knob, a hook adapted to engage with or disengage from said arch of said base plate to have said locking unit secured to or released free said base plate when said knob is moved to "secure" or "release", and a hole adapted to correspond to and be in alignment with latch end of latching piece to al