An electromagnetic fuel injection valve is provided that includes a fuel inlet tube (26) extending from an outer end of a hollow fixed core (5), and a retainer pipe (23) that is inserted from the fuel inlet tube (26) into a hollow portion (21) of the fixed core (5) and supports a fixed end of a valve spring (22). The fuel inlet tube (26) is formed from a high hardness magnetic material, a retainer pipe 23-facing portion of the fuel inlet tube (26) is heated so as to form a softened region A, and this softened region A of the fuel inlet tube (26) is crimped toward the retainer pipe (23) so as to fix the retainer pipe (23) to the fuel inlet tube (26). In this way, even when the fuel inlet tube is formed from a high hardness magnetic material, the retainer pipe can be reliably fixed to the fuel inlet tube by crimping.