PURPOSE: To obtain the subject polyamide fiber resistant to scattering of short fibers in handling and blocking of fibers in storage by coating a polyamide fiber with an olefin polymer having a specific C number and a softening point higher than a specific level.

CONSTITUTION: An aromatic polyamide filament is immersed in an aqueous dispersion containing 2-50wt.% of a 2-4C olefin polymer having a Vicat softening point of ≥40°C (e.g. ethylene homopolymer or ethylene copolymer), the filament is taken out of the dispersion and dried and the coated filament is cut to 0.1-6 mm long to obtain the objective aromatic polyamide short fiber for the reinforcement of thermoplastic resins. The fiber has improved working efficiency because there is no problem of the scattering of short fibers and the blocking of fibers in storage. Furthermore, since the fiber has excellent dispersibility in resins to be reinforced, the composite resin material reinforced with the fiber has improved mechanical strength, abrasion resistance, etc.