The invention relates to a quantitative evaluation method of imbibition and oil production effects of an imbibition agent. The method evaluates the imbibition and oil production effects on crude oil of a target oil pool by the imbibition agent. The method includes the following steps that quartz sand or natural sand in corresponding particle size ranges is selected according to the reservoir permeability Ka of the target oil pool; the imbibition efficiency value of oil sand which is made by mixing the crude oil or simulated oil and the quarts sand or the natural sand of the target oil pool by the imbibition agent is measured; evaluation is performed on the imbibition and oil production effects on the target oil pool by the imbibition agent according to the imbibition efficiency value. The quantitative evaluation method of the imbibition and oil production effects of the imbibition agent has the advantages that the evaluation grade of the imbibition effects is given, a specific basis is provided for comparison and optimization. The method evaluates the effects of the imbibition agent and has good simulation and consistency.