Abstract: Abstract：〖WT5BZ〗Given the problem that the front-end acquisition of analog video images can't mate the back-end digital monitor,a video conversion adapter based on MCU+WSC2810 platform,PAL decoder chip,LVDS encoding chip and DDR SDRAM is brought forward.Firstly,the analog signal is converted into a digital signal via encoding pattern,with steps following named interlaced scanning transform of signal transformation,higher frame rate,resolution,and etc.Secondly,to do the OSD image overlay processing,and thirdly video signal is output through LVDS coding.All of procedures therefore make it realized that the interlaced scanning whose resolution is 720×576,25Hz PAL analog video signal is successfully transformed into progressive scan,a resolution of 1024ｘ768,60Hz an LVDS video signal output.Based on the development of hardware system being measured,it is made sure the effectiveness of the scheme.