Bulk metallic glasses (BMGs) are exhibit a unique atomic structure and have a long-range disorder but short-to-medium-range order, contrasting sharply with the periodic arrangements found in crystalline materials. This distinct arrangement grants BMGs exceptional properties such as high strength, significant elastic limits, and high resistance to corrosion and wear. However, BMGs are brittle owing to localized shear band propagation during deformation under load, particularly at temperatures below their glass transition temperature. This brittleness restricts their practical applications, prompting researchers to explore methods to enhance their ductility. One prominent approach involves the development of bulk metallic glass composites (BMGCs) via incorporating a secondary phase that effectively mitigates the single shear band instability and promotes multiple shear bands to partake in plastic deformation, significantly enhancing the room-temperature ductility. BMGCs reinforced with W wire are noteworthy owing to the high density and strength of W, making these materials highly applicable in the defense sector. By embedding W wires homogeneously into a BMG matrix such as Vitreloy 1 (Zr_41.2Ti_13.8Cu_12.5Ni_10.0Be_22.5, atomic fraction, %), the resulting composite has high compressive strength and ductility. Despite these benefits, the production of W wire-reinforced BMGCs inevitably introduces thermal residual stresses owing to the differences in the coefficients of thermal expansion of the composite components. These stresses can significantly affect the mechanical properties of the BMGCs. Advanced nondestructive techniques such as neutron diffraction have become indispensable tools for evaluating the internal stress distribution within such materials. Neutron diffraction enables the measurement of stresses deep within the materials, providing a comprehensive view of the entire sample volume, which is crucial for optimizing the manufacturing processes and enhancing the performance of the BMGCs. This work aims to comprehensively investigate the effects of various processing parameters, such as the diameter of the W wires and temperature, on the residual stresses within W wire-reinforced BMGCs. By using neutron diffraction to analyze the effects of annealing treatment of W wires in hydrogen, heat treatment duration of BMGCs, and W wire diameter on residual stresses, this work aims to finely tune the internal stresses during the manufacturing process, thereby laying a foundation for optimizing and improving the material properties of W wire-reinforced BMGCs. The results reveal a strong <110> texture along the axial direction of the W wire and a low refined residual value (R_wp), confirming the accuracy of the refined data. The tempering process demonstrates a complex influence on the control of residual stresses within W wire-reinforced BMGCs. Measurements and analyses of residual stresses after different tempering treatments reveal that a 30 min temper at 200^oC effectively reduces residual stresses. However, extending the tempering duration to 60 min leads to the reaccumulation of stresses owing to complex reactions within the BMGCs. In addition, a comparative analysis of W wire-reinforced BMGCs annealed in the present and absence of hydrogen indicates that the former significantly improves the surface quality of W wires, thereby reducing the residual stresses in the BMGCs. After annealing in hydrogen, the diameter of W wires increases from 0.2 mm to 0.3 mm, which has little effect on the overall stress distribution.