In case of inserting an IC having multiple pins into an IC socket so as to be brought into contact with the IC socket, a contact pressure application unit is integrated with the IC socket, whereby the IC is inserted into and brought into contact with the IC socket without bending a lead of the IC. An IC contact mechanism comprises a contact pressure application unit having a through hole at the center thereof, the contact pressure application unit also having a mold guide portion so as to contact an outer periphery of a package of an IC and a lead presser portion for pressing a lead of the IC; and a suction block having a suction pad at the tip end thereof and movable vertically in the through hole of the contact pressure application unit characterized in that the IC is inserted into a contact socket so as to be brought into contact with the contact socket while the suction pad sucks the IC.