Abstract: Al-Si-Mg aluminum alloy sports equipment samples were produced with different pouring temperature, die temperature and filling speed respectively, and their mechanical properties were tested, and analyzed and X-ray nondestructive testing analysis was carried out.After experimental optimization, the final results are as follows: in the process of increasing the pouring temperature from 675℃to 715℃, the die temperature from 100℃to 300℃, and the fast filling speed from 1.5 m/s to 3.5 m/s , the strength of the alloy generally increases first and then decreases.When the pouring temperature is 695℃, the die temperature is 250℃and the filling speed is 2.0 m/s, the tensile strength of the alloy reaches the maximum value (287.11 MPa), the yield strength is also the maximum value (190.53 MPa), and the elongation is 3.66%.After X-ray non-destructive testing, no obvious casting defects such as air entrainment and shrinkage are observed in the die-casting alloy.Al-Si-Mg die-casting sports equipment products with excellent mechanical properties and dense structure can be obtained.