The activated carbon filter is a new type of deep filter. It is made of high-quality shell-shell activated carbon, and its structure is composed of low-melting adhesive. It is continuously extruded. The filter element has excellent adsorption performance of granular activated carbon and effectively overcomes the carbon powder leakage defects existing in the use of all activated carbon filters. It has the precise filtering characteristics of tubular components, which can effectively remove organic matter, particles, rust, residual chlorine, odor and the like in the liquid.