The invention discloses an automatic cutting device based on aluminum strips. The automatic cutting device based on the aluminum strips comprises a heating furnace, a cutting device, a loading plate,rolling wheels, a rolling motor, a base support, a lifting device, a first air cylinder, a first push rod and a main control device. According to the device, the heat and softened aluminum strips in the heating furnace are moved through the rolling wheels, penetrate through the cutting device and are placed onto the loading plate; then the aluminum strips are conveyed to the cutting device so as to be cut and are descent to a certain height through the lifting device after finishing cutting; and the push rod is used for completely pushing the cut aluminum strips out of the cutting device so asto completely load the aluminum strips on the loading plate. The automatic cutting device based on the aluminum strips can be used for automatically and intelligently accomplishing cutting, moving and conveying operation, is not only saving in manpower and material resources and safe to operate, but also beneficial to greatly improving the cutting, moving, conveying and producing efficiency of the aluminum strips, and meets the requirements on producing and cutting a great number of aluminum strips.