To obtain a polypropylene fiber that has a small single fiber fineness, is dyed similarly to a polyester fiber and does not generate heat by oxidation even by tumbling drying, etc., and is useful especially for clothing uses.

The dyeable polypropylene fiber comprises 3-30 wt.% of a polyester composition copolymerized with 1-30 wt.% of a polyalkylene glycol component and ≥0.1 wt.% of a high-molecular-weight hindered amine-based stabilizer.