Low temperature or surface cementing often faces problems such as long waiting time of cement slurry，low early strength of cement and slow development. Using calcium nitrate，sodium silicate，comb type polycarboxylic acid drag reducer and polypropylene stabilizer as raw materials，by optimizing the preparation process using solution chemical precipitation method， magnetic stirring and ultrasonic dispersion，a low-temperature strength induced nucleus material（LTI）for cement stone was prepared. The microstructure and elemental composition of LTI were observed by transmission electron microscopy. The influence of LTI on the low-temperature thickening property，static gelling transition time and the development of low-temperature strength of cement was studied. The results showed that the basic unit structure of LTI was stacked tinfoil-like and float-like，accompanied by a small number of rod and regular square crystals，the size of 100—200 nm，and the surrounding extension of fiber-like material. The specific surface area was large. By utilizing its own template nucleation function，nucleus LTI promoted the hydration process of cement，reduced the nucleation potential barrier of accumulated products，and then promoted the transition of low-temperature thickening curve from climbing to right angle. The thickening time ratio could be controlled within 0.47 at 10 ℃. LTI could induce the rapid development of early strength of cement. With increasing LTI dosage and temperature，the low-temperature compressive strength of cement increased. At 20 ℃，the 24-hours compressive strength of cement stone mixed with 1.5% and 5.0% LTI increased by 89.1% and 257.8%. At 30 ℃，the 6-hours compressive strength of cement stone mixed with 1.5% and 5.0% LTI was 4.1 MPa and 6.5 MPa，respectively. Compared with freshly formed cement stone，the compressive strength achieved a leapfrog development. The static gelation transition time of cement slurry mixed with LTI at 30 ℃ could be shortened from 78 min to 18 min，which helped to improve the anti channeling function. Nanoscale hydrated calcium silicate nucleus LTI could shorten the construction cycle of oil and gas wells in low temperature shallow or high cold areas，and then improve the quality of cementing.