The large amount of oily sludge generated during oil extraction and processing poses great harm to production and ecological environment, and is also a valuable secondary resource. It must be treated harmless and can be utilized as a resource. The sludge profile control injection system is a set of oily sludge profile control injection systems designed and developed based on manual/semi-automatic profile control injection systems. The system adopts the modular design of manual/semi-automatic profile control injection system, while adding modules for sludge treatment, sludge conveying, and sludge storage. Using oily sludge as a profile control agent for oilfield profile control and water plugging operations not only achieves harmless treatment of oily sludge, but also increases oil production in oil fields.