The present invention relates to a dye sensitive solar battery or sub-module, to a method for manufacturing same, to an electrolyte injection apparatus thereof, and to a method thereof. A dye sensitive solar battery sub-module includes dye sensitive solar battery cells arranged adjacent to each other and connected between upper and lower transparent substrates, wherein an insulation separating film is formed between adjacent cells. The insulation separating film between the cells has an electrolyte passage for the communication of electrolytes between adjacent cells. Whereby, the number of electrolyte injection holes for injecting an electrolyte into cells can be reduced and the leakage of electrolytes due to defects of injection holes can be prevented in a dye sensitive solar battery sub-module. Further, the level of electrolytes between cells is kept constant to achieve a uniformity of efficiency in each cell.