High pressure homogenizer (uniform slurry pump) is a general purpose equipment for the preparation of superfine liquid / liquid emulsion and / or liquid / solid dispersion, which are widely used in production and research areas including food, beverage, pharmaceutical, chemical, light industries, bio-technologies, etc. All parts in contact with fluid media are made from materials of super abrasion durability and excellent corrosion resistance, thus to avoid any adverse impact on the fluid to be handled. The pump has an emulsion / dispersion effect greatly better than those of colloid mill or tri-roller mill and shows other advantages such as low heat generation, high efficiency, small occupied area, cheap operation expenses, etc. The maximum pressure achieved can be 150 MPa.