The invention discloses an experimental facility for stimulating processes of continuous casting solidification and soft reduction. An experimental method comprises the following steps that: model alloy is put into a cavity of an observation mould, wherein the first side of the cavity of the observation mould is provided with at least the first heat dissipating area and the second heat dissipating area which are arranged up and down, and the second side of the cavity opposite to the first side is provided with at least the third heat dissipating area and the fourth heat dissipating area; the first heat dissipating area, the second heat dissipating area, the third heat dissipating area and the fourth heat dissipating area are respectively heated for temperature rise by a temperature control system to melt the model alloy; and the first heat dissipating area, the second heat dissipating area, the third heat dissipating area and the fourth heat dissipating area are respectively cooled bythe temperature control system, and the heat dissipating speeds of the first heat dissipating area and the third heat dissipating area are higher than those of the second heat dissipating area and the fourth heat dissipating area through the temperature control system, so that the model alloy generates a solidification mushy area similar to continuous casting liquid core for observation. According to the experimental method and the experimental facility, the solidification characteristics of the alloy and the action and solidification flow condition of solidification crystals of the continuous casting under the action of the soft reduction can be studied.