Microcapsule containing active substance and preparation method thereof

The invention relates to a microcapsule containing an active substance and a preparation method thereof, in particular to a multilayer microcapsule containing an embedded active substance and a preparation method of the multilayer microcapsule. According to the application, the microcapsule particles are prepared by a method of combining extrusion rolling core making (or centrifugal granulation core making) with fluidized spray coating; the preparation method comprises the following steps: firstly, preparing a primary pellet core by adopting an extrusion spheronization granulation method or a centrifugal granulation method, and then uniformly fluidizing a water-blocking coating layer material and a hydrophilic coating layer material to the surface of the pellet core. The prepared microcapsule particles are safe, free of toxic and side effects, small in particle size, rich in active substances and good in stability under the normal temperature condition, and have a slow release effect. 本申请涉及一种含活性物质的微胶囊及其制备方法，特