In this paper systematic data on morphological characteristics, physical and optical properties, chemical composition, thermal properties and trace ele- ment geochem:istry are given for pitchblende from uranium deposit Nq. 8411. The pitchblende occurs in the form of grapeform and reinform. Iis association minerals are mainly the various sulfides of Fe, Cu, Pb, Zn, Ni, Co, Mo, magnetite, microquartz, ankerite and calcite etc.. The pitchblende always replaces pyrite, galena, sphalerite, chalcopyrite and so on. Reflective power of the pitchblende is 11.98%一14.92% (in green light)， 10.12%一12.51%(in red light).Microhardness V120 is 504-760.5kg/mm2. Specific gravity is 7.583-7.721.Unite cell a0 is 5.436 A-5.420A.The D: T. A curve has a weak exothermic peak at 450-490°.It is rich in ca, As,Ba， V. The pitchblende is formed between 200一170℃.The geneses of texture of the ore and the pitchblende are discussed. These featul-es support a composite genesis of the uranium deposit and can be regarded as typomorphic for pitchblende from the uranium deposits related to syntectic type granite intrusive bodies. Some of the uranium and other me- tallic elements of this deposit are mainly differentiated from the quartz-syeni-- to magma. The others are drawn from the host rock.