The invention discloses an analog signal generator, which comprises a central processing unit, a storage unit (1) of the central processing unit and a work information generating unit (6), wherein the central processing unit and the storage unit (1) thereof are electrically connected with a frequency signal generating unit (2), a voltage signal generating unit (3), a current signal generating unit (4), a speed signal generating unit (5), the work information generating unit (6), a signal conditioning unit (7), an external interface (8) and a display (9), wherein the signal conditioning unit (7) is further electrically connected with the frequency signal generating unit (2), the voltage signal generating unit (3), the current signal generating unit (4), the speed signal generating unit (5) and the external interface (8). The invention has the advantages of high integration degree, convenient installation, simple operation and high reliability degree. The analog signal generator is suitable for manufacturing enterprises and scientific research units of various large-scale transport equipments.