The invention discloses a non-evaporable fiber silk type getter, which comprises the following components by weight percent: 80%-92% of Ti, 5%-12% of Ni and 3%-8% of V, and the sum of the weight percents of the components is 100%, wherein the Ti is high-purity sponge titanium with the purity of 99.1%-99.7%, impurity elements of Al and O in the getter respectively account for below 80ppm of the total weight of the getter by weight, and the impurity elements of C, Fe, Si and N respectively account for below 20ppm of the total weight of the getter by weight. The invention further discloses a preparation method of the getter, which comprises the following steps: carrying out smelting thrice on three types of metal, then forging, obtaining a finished alloy ingot, further carrying out working procedure of refining fiber silk, obtaining a pre-formed black, and finally adopting vacuum sintering for preparing the getter. The getter can solve the powder shedding problem of the non-evaporable getter during the using process and has high gettering rate of H2 and sufficient gettering capacity.