As the basic component of lattice structures，the precision of the wind force coefficient of angle steels directly affects the accuracy of the value of the overall wind coefficient of structures. The typical equal angle steels used to form space lattice structures are elected as the research objects. With the help of a special designed test apparatus，static wind forces on a typical equal angle steel under different yawed and inclined angles are thoroughly tested in a wind tunnel by using the high-frequency-force-balance technique. The results show that，firstly，compared with vertical installation，the drag coefficient and lift coefficient of inclined angle steel have similar variation trend with yawed angles. However，these coefficients significantly reduce at some wind direction angles. Secondly，wind force coefficients（CD，CL，CM）show good agreement under different inclined angles（from 30°to 50°）.In other words，the changing of inclined angles has little influence on wind force coefficients. Thirdly，the reduced height of static wind forces on vertical equal angle steel is around（0.4-0.6）total height. However，when the angle steel is leaning forward the oncoming wind，the fluctuation range of reduced height of the static wind forces increases obviously. In addition，based on the test results，the formulas about the skewed wind load factors and lift coefficients for both yawed and inclined wind angles of the equal angle steel are constructed，and relevant parameters are fitted.