The invention relates to a cooperative control method and a cooperative control device, belonging to the technical field of optical communication, and specifically relates to a rapid cooperative control method and a rapid cooperative control device of a variable optical power unit. Through the method and the device, a gain/attenuation control parameter of single variable optical power gain/attenuation unit can be calibrated on the basis of a certain resolution according to actual demands, control parameters of two levels are combined into a control parameter array, and all the control parameter arrays form a control parameter matrix. Different control targets of two levels are abstracted into different jump strategies from one element to next element on the control parameter matrix, thus,the control parameters of two levels for realizing the control targets can be inquired quickly, and finally, rapid cooperative control of the cascaded variable optical power gain/attenuation unit canbe realized.