PURPOSE: A solar cell for a window is provided to support shear force from the window by using an additional combination member excluding a sealing member. CONSTITUTION: A second substrate is arranged to be opposite to a first substrate. A first electrode is provided on the first substrate. A second electrode prepares on the second substrate. An electrolyte layer(160) is filled into the internal space between the second substrate and the first substrate. A sealing member(170) prevents the electrolyte layer from leaking outside. A combination member(180) is arranged outside the sealing member to make the first substrate adhered to the second substrate.