The invention relates to a stage lamp with mobile light source systems. The stage lamp comprises multiple light source systems distributed in an array form, wherein at least one light source system is the mobile light source systems. The stage lamp further comprises a mobile driving system; and the mobile driving system is used for driving the mobile light source systems to move along a certain rails to change distribution positions of the mobile light source systems, so that all the light source systems form a specific array shape to form a specific light source pattern. The stage lamp has such advantages as improvement of the light source utilization rate and good light source array pattern switching effect.