Method for preparing MQ silicone resins

The invention provides a method for preparing MQ silicone resins, which is characterized by adding an organic silicone monomer having four functional groups and an end-blocking agent by the molar ratio of 90-40:10-60 to a reactor, and adding 0.1-10% of solid super-acid catalysts by the mass percentage at the same time, adding deionized water while stirring at a constant rate; continuing stirring at 70-120 DEG C to conduct reaction for 2-15h;, further adding methylbenzene to dissolve, and filtering the product to remove water and alcohol on the lower layer, carrying out vacuum distillation to remove the solvent and carrying out condensation polymerization to obtain liquid or solid MQ silicone resins. By synthesizing the MQ silicone resins in the presence of solid super-acid as the catalyst which is solid-phase in the reaction system and can be directly removed by filtration after the reaction, therefore, the invention avoids the complicated process of post-treatment, greatly reduces the synthesis time of the MQ silicone resins and improves the production efficiency of the product. Therefore, the method of the invention is particularly suitable for industrialized production.