Generally,navigation messages of all satellites and frequencies are broadcasted at the same beginning time.That is,receivers will receive the same message parameters from different satellites and frequencies at the same time.To compress time of receiving navigation message,navigation message alternate broadcasting methods among satellites and frequencies are designed in this paper.Taking Beidou constellation as an example,messages relative broadcasting turn among satellites and frequencies is optimized designed.It is indicated that alternate broadcasting design among satellites and frequencies will improve the navigation messages timeliness effectively.And at the same time,system building costing neednt be increased.The study is significant in quick prediction of satellites visibility and decreasing the first positioning time when the receiver is starting.