Disclosed are an efficient-type corn niblet 
powder-making and 
caking-making 
system and a corn cake preparing method. The efficient-type corn niblet 
powder-making and 
caking-making 
system comprises a 
winnowing machine, a 
magnetic separator, a crushing and skinning 
machine, a crushing mechanism and a milling mechanism which are arranged in a treatment workshop, further comprises a batching tank anda puffing 
machine which are arranged in a puffing workshop, and further comprises a feeding channel and a finished product 
temporary storage tank. The feeding channel is formed in a downward-inclinedmode from the position, located on the outer side of the treatment workshop, of the ground, extends into the treatment workshop, and is connected with the bottom end of a first 
elevator in the treatment workshop. The refining effect is achieved through multi-link screening and then conveying and a multi-stage 
grinding and screening mechanism, so that feeding, 
powder-making, puffing and dischargingare conducted in different workshops, feeding and discharging are convenient to operate, the situation that operators are in the treatment workshop with loud 
noise is avoided, mutual interference ofpowder-making and puffing processes is avoided, 
noise reduction treatment is further conducted on key equipment, air pipes and an 
elevator channel, and the structure of the connecting position of theair pipes is improved to solve the situation of outage retention.