The invention relates to a method for producing a beam guide grid (4), which is produced from a moulded body provided with a grid of through channels (40) and wall regions surrounding said through channels, the moulded body being made of a mixture of beam-absorbing metal powder and binder, more particular tungsten powder and binder. An advantageous production is achieved in that the moulded body is produced by means of injection moulding, wherein the homogenised mixture, as an injection moulding material prepared in flowable form, is filled by means of an injection moulding machine in a moulding die (7) that moulds the moulded body, into which moulding die (7) moveable mould cores (72) are inserted before the injection moulding material is introduced (figure 1).