The physical and chemical properties of the strontium intermediate alloy were introduced in this article. Al-Sr、Mg-Sr、Cu-Sr and Pb-Sr intermediate alloy are now used mainly in the fied of metallurgical industry and metallic material industry. The manufacturing technology（direct mixing method and molten salt electrolysis method）、current status of application（deoxygenation agent、desulfurization agent and metamorphism agent） as well as working mechanism of these intermediate alloys were detailed respectively. Existing disadvantages of strontium industry in our country and its developing direction were pointed out simultaneously.