The measurement of electron beam parameters is very important for a linear induction accelerator (LIA). The measurement equipments must meet the demands of high time resolution, high sensitivity and high stability. The ultra-high-speedperformance is especially the most important one.One kind of 3-frame framing camera with ultra- high-speed and high performance has been developed recently. The optical principle of the framing camera is based on splitting the focused imaging light beam in the field of image space. It features good imaging quality and high light energyefficiency. The gated image intensifier with high speed shutter, the scientific CCD camera and the high speed controller based on large scale field programmable gate array are the main portions. The shutter time and the frame interval time can be set independently. The effective image size is 25 mm in diameter. The highest shutter time is about 3 ns. The spatial resolution is better than 35 lp/mm inimage space.