The influences of modulus,concentration of sodium silicate solution,calcined temperature and calcined time of kaolin and liquid-solid ratio on compressive strength,mini-slump extension and setting time of geopolymers material were investigated by using cross experimental design method.The pilot study on the reaction products of geopolymers was made.The results are as followings:(1)The effect of each factor on 3 d compressive strength is significant,the effect of each factor except modulus of sodium silicate solution on 7 d compressive strength is significant,only the factor of liquid-solid ratio has significant effect on 28 d compressive strength.(2)The effects of concentration of sodium silicate solution and liquid-solid ratio on mini-slump extension of geopolymers material are significant.(3)The effect of each factor on setting time of geopolymers material is no significance.(4)The reaction products of geopolymers are amorphous,and they may be the multiplex substances of the PS and the PSS.