To provide a method and an apparatus for connecting a solar cell element string with a bus bar which achieve good work efficiency and high yield and manufacture a solar cell panel at low cost.

A method and an apparatus 1 for connecting a solar cell element string with a bus bar are characterized by heat bonding an overlapped portion X of a tab 4 protruding from a solar cell element string 3 and a bus bar 5 onto a thermosetting resin sheet for sealing 2 when a process, in which the solar cell element strings 3 are connected to each other to form a solar cell element matrix 3m, is conducted as a step of solar cell panel manufacturing processes.