The invention discloses a process for efficiently laser 3D printing Fe-based amorphous components, belonging to the field of alloy additive manufacturing technology. The process includes the following steps: using a crystal powder with a particle size of 20 μm ~ 200 μm, printing the crystal component by a coaxial powder feeding laser 3D printing method under the conditions of a laser power of 500W ~ 1000W, a scanning speed of 600 mm/min ~ 3000 mm/min, a laser spot diameter of 2 mm ~ 4 mm, a printing thickness of 2 mm ~ 50 mm, and an oxygen content in the printing environment below 10 ppm. After the crystal component has cooled for 30 min ~ 120 min, Fe-based amorphous powder with a particle size of 20 μm ~ 200 μm is printed on the surface of the printed crystal using parameters of a laser power of 800W ~ 1500W, a scanning speed of 600 mm/min ~ 3000 mm/min, and a printing layer thickness of 0.3 mm ~ 2 mm, finally obtaining the Fe-based amorphous component. This invention overcomes the drawbacks of simple amorphous forming shapes, low production efficiency of amorphous components, and the presence of cracks, and addresses the issue of high cost of amorphous powder.