Herein, porous scaffolds were fabricated from polylaurylamide (PA12)/hydroxyapatite (HA) composite using selective laser sintering (SLS). First, the response surface method was adopted to obtain the optimal process parameters, and the porous scaffolds of PA12/HA were manufactured employing these optimized parameters. The influences of pore type, porosity, and HA ratio on the mechanical properties of the porous scaffolds were then studied based on the L₉(3 ⁴) orthogonal test. Results show that the laser power of 27.5 W, scanning spacing of 0.12 mm, and scanning speed of 1500 mm·s ^-1 are the optimal combination of process parameters. Porosity has the biggest effect on the compressive strength of porous scaffolds, followed by pore type and HA ratio. The maximum compressive strength is 8.04 MPa when the porosity is 60%, the pore type is circular, and the HA ratio is 15%. The minimum strength of 0.26 MPa is obtained when the porosity is 80%, the pore type is square, and the HA ratio is 15%.