Based on geological; geophysical and geochemical studies of the Yindongpo gold deposit; the authors established its prospecting criteria and ore - search model and; furthermore; made prognostic appraisal of geochemical anomalies in the ore dePOSit and ore zone as well as outside the ore zone. The utilization of the model to ore prospecting has improved the theory of geophysical and geochemical prospecting and raised research level of the ore dePOSit; thus yielding obvious geological and ore - prospecting effects. The present paper has given a detailed description of the results obtained in the research.