To provide a method for connecting bases for prepreg, with which reduction of uniformity of product and adverse effect on production facilities are prevented and stain of product and production facilities can be prevented.

This method for connecting bases for prepreg is used for producing prepreg by impregnating and drying a resin. The end part 2 of the base 1 composed of a sheetlike fiber assembly is bonded and connected to the end part 4 of another base 3 composed of a sheetlike fiber assembly. The end part 2 of one base 1 is provided with an adhesive 5. The end face 2a of one base 1 and the end face 4a of another base 3 are positioned in the range of width H of the adhesive 5 and the end part 2 of one base 1 is piled on the end part 4 of another base 3 and bonded with the adhesive.