The utility model discloses a skid-mounted water-dissolution mining technological process converting and monitoring device which comprises a flange, a sampling opening and a valve. An iron box is arranged at the skid-mounted upper part, movable plates are arranged at the front and rear sides of the iron box, and the valve used for positive/negative circulating conversion is arranged at the inner part of the iron box. A flow rate meter, a thermometer and a pressure meter are arranged on a pipeline at the inner part of the iron box; the sampling opening and the flange are arranged on the pipeline at the outer part of the iron box, and the flange is connected with a well opening by an underground pipeline. The flow rate meter, the thermometer and the pressure meter are encapsulated in the iron box. A top cover of the iron box is inclined towards the front and rear sides. The skid-mounted installation refers to the welding between two longitudinal I-beam steel and two transverse square steel. The flange is connected with two main pipelines, and is respectively connected with bent pipes of the well opening by two underground pipelines. The bent pipes are respectively connected with a center pipe valve and a middle pipe valve. The skid-mounted water-dissolution mining technological process converting and monitoring device is durable, can be repeatedly used, greatly simplifies a present well opening device, is convenient for the operation of a well repairing machine, can be entirely hoisted for relocation, and reduces the workload as well as equipment losses.