The utility model provides a continuous zoom microscope lens and a microscope. The continuous zoom microscope lens comprises a lens shell and an eyepiece connecting cylinder arranged in the lens shell. wherein the guide sleeve is internally provided with a rear lens group and a front lens group which slide along the axial direction of the guide sleeve, the cylinder wall of the curved cylinder is provided with an upper curved groove and a lower curved groove, and the rear lens group and the front lens group can be driven to slide along the axial direction of the guide sleeve according to a predetermined curve by shifting the deflector rod, so that continuous zooming is realized. According to the utility model, the simple deflector rod chute structure is adopted to replace a complex gear structure to realize continuous zooming, so that the manufacturing cost is reduced, and the zooming operation is more convenient.