A touch pen, a method for controlling the same, a touch control device and a readable storage medium are provided. The touch pen includes: a pen body; and a first controller, a touch sensing circuit and an accommodation part that are arranged on the pen body. The accommodation part is configured to accommodate a fluid, and is coupled to the touch sensing circuit. The touch sensing circuit is configured to contact the fluid in the accommodation part in a case that the pen body is in an inclined posture, detect position information of the fluid in contact with the touch sensing circuit and determine a corresponding reference value based on the position information. The first controller is coupled to the touch sensing circuit, and is configured to output a control signal according to the reference value.