Mo-Si-B alloys, as a more and more frequently considered high-temperature material, face the challenge of machining complex shapes. However, ingot processing of this class of materials is challenging due to the high melting points and different multi-step powder metallurgical processes were typically used in the past to produce dense samples out of these high melting material. This work presents the first study on additive manufacturing of a high melting point near-eutectic Mo-based alloy via Laser-Powder Bed Fusion (L-PBF). The feasibility of printing pre-alloyed Mo-Si-B powder material was demonstrated. Mo-Si-B powder was manufactured via gas atomization (GA) process out of solid raw materials meeting the requirements for additive manufacturing (AM) regarding flowability and particle size. After developing suitable process parameters for the generation of crack-free samples, the microstructure of the materials was analyzed in detail using SEM/EDS and EBSD analyses. An overview about the ambient and high temperature material properties of a Mo-16.5Si-7.5B alloy is given. In terms of high-temperature mechanical properties, the brittle-to-ductile transformation temperature (BDTT) and the creep rate at a potential application temperature were determined.