PURPOSE: To increase a bending strength of a tape itself, by forming a continuously folded part along the longitudinal direction at the side edge of the tape itself sealed by a cover tape on a plurality of recesses to contain electronic parts.

CONSTITUTION: In a producing apparatus of a stick of electronic parts assembly, a cover tape 19 drawn from a tape reel 18 seals the openings of recesses 9 to contain the electronic parts 14 by a roller 40. After tape itself 5 sealed by the covering 19 is held by a heating element 21 in order to securely stick the cover tape 19 to the tape 5, a reinforcing folded part 23 being formed by a forming part 22, the tape being cut to a required length (e) by a cutter 24, and its is contained in a container 26 as a stick of electronic parts assembly 25. Thereby a continuously folded part along the longitudinal direction is formed at the side edge of a long size of tape and hence a stick of electronic parts assembly with an increased strength against bending of the tape can be supplied.