The invention discloses an injection moulded phenolic moulding plastic for a commentator. The injection moulded phenolic moulding plastic comprises the following components in parts by weight: 15-24 parts of phenolic resin, 3-8 parts of a curing agent, 1-3 parts of a curing accelerator, 25-33 parts of reinforced fibers, 0.5-2 parts of a releasing agent, 10-45 parts of inorganic filler and 1-5 parts of a flexibilizer. The phenolic moulding plastic can be used for an injection moulding machine, so that the moulding efficiency is greatly improved. The mould is not sticky, the bending strength of the moulded product reaches up to over 180Mpa, the thermal deformation temperature is greater than 240 DEG C, and the insulation resistance is greater than 1011 ohms.