The invention provides a thermocouple automatic thermometric analysis method based on Labview. The method comprises the following steps that a data collecting card is connected with a temperature detecting device and an upper computer; after connecting, through the upper computer, a port which the data collecting card occupied and a collecting channel occupied by the temperature detecting device on the data collecting card are selected; the upper computer receives tested equipment temperature data which are collected by the data collecting card and are detected by the temperature detecting device; according to the temperature data of sampling points, a temperature-changing-along-with-time graph and a temperature changing speed curve graph are generated; and according to the temperature-changing-along-with-time graph and the temperature changing speed curve graph, performance analysis is carried out on tested equipment. According to the method, the temperature sampling frequency of the data collecting card is adjusted and/or a sampling channel of the data collecting card is switched through a temperature sampling frequency instruction and/or a collecting channel switching instruction triggered by the upper computer, and accordingly Labview software can be widely suitable for different data collecting cards.