The invention discloses an ionic type rare earth ore in-situ leaching and mining method. The method includes the steps of extracting ionic type rare earth ore liquid from a shallow mine layer and extracting ionic type rare earth ore liquid from a deep mine layer. The method has the advantages that the mining process is simple, mining is safe, the mining amount of the ionic type rare earth ore liquid is improved, seepage pressure can be monitored in real time, and automatic control and precise liquid injection are realized.