The utility model relates to an apparatus for preventing solution from splashing for a coating roller of a roller coater which is mainly used for a hot galvanizing unit and an electroplating unit of cold rolling. The apparatus for preventing solution from splashing for a coating roller of a roller coater is characterized in that the utility model comprises two sets of solution collecting devices which are respectively arranged on the drive side and the working side of a setting coating roller; the solution collecting devices on both sides are arranged into 180 DEG symmetrically; the solution collecting device comprises a first solution collecting disc, a second solution collecting disc, a scraper and brackets; the first solution collecting disc and the second solution collecting disc are fixedly connected into integration and are provided with communicating holes; the front side of the first solution collecting disc is in an inclined protruded shape, and the upper part of the protruded shape is provided with a gap; the scraper is arranged on the upper part of the protruded shape by screws, and the scraper and the roll surface of the setting coating roller are contacted; both sides of the second solution collecting disc and the first solution collecting disc are fixedly connected with the brackets which are arranged under an upper working groove; the lower part of the second solution collecting disc is provided with a round hole which is connected with a circular tube output. The utility model has the advantages of simple structure, convenient operation, easy realization, etc.