Gold conductor slurry is widely used in low-temperature co-fired ceramics (LTCC) because of the good stability and weldability. The surface morphologyparticle size of gold powder have great impact on the gold conductor paste. With chlorinic acid as the raw materialD-isoreascorbic acid as the reducing agent and acacia senegal as the dispersantthree kinds of spherical gold powder with high purity were prepared by different experimental conditionsand their surface morphologyparticle size and specific surface area were all different. The growth process of gold powder belongs to the seed-mediated growth methodand controlling the Cl- concentration and the pH value of the reaction solution can finally obtain different morphology and particle size. The results show that the specific surface area of three kinds of gold powder are 07400418 and 0447 m2·g-1respectively. The specific surface area of gold powder significantly affects the viscosity of gold paste. Gold conductor paste for LTCC with the viscosity of 326209 and 214 Pa·s are prepared in the same ratio with the three kinds of gold powder as the function phaserespectively. The experimental results show that the gold conductor slurry is prepared from the gold powder made when dissolving chloruric acid in NaOH solution and adjusting the pH value to 2as well as the setting 30%(mass fraction) diethylene glycol ether solution as agent solventwhich has the highest density low square resistance and the highest gold wire bond strength. The square resistance and gold wire bond strength are 1.11 mΩ/□ and 8.66 grespectively. The weldability of all the three kinds of gold conductor paste are better.