To control the lasing of Surface Plasmon Polaritons (SPPs) more effectively, an integrated device of lasing SPPs based on a coupling grating was researched and the propagation and lasing of the SPPs in passive metal layers were realized by electron beam exciting and grating coupling. The characteristics of wave vector for the SPPs propagation were analyzed and the general characteristics of the device were obtained through the analysis of lasing condition and light wavelength under a special condition. Results indicate that the device to complete the SPPs lasing based on the coupling grating has an obvious strong local characteristics, and it can control the lasing SPPs effectively by adjusting the intensity of injecting electron beam. The device can propagate the SPPs well when it is in the range of visible light wavelength. The device has a positive significance for researching the construction of plasmon cell circuit, the detection of nano-wire structure and the explosion of nano-optical field.