As a result of the developments of micro-electronic technique, computer technique, software technique, network technique and the applications of these techniques in measurements and apparatus, dummy instruments technology has made great progress in apparatus and instruments domain. In traditional experimental spectrum meters, the measurements, analyses, display and controls of them were separated, and made the experiments complexly operating. Combining With the applications of Labview in apparatus' intelligentizing, recommends mostly the communication between computer and apparatus and the data collecting in computer.