选取蓟县地震台同址观测的3台不同型号重力仪（gPhone、DZW和GS-15）2022年全年的连续观测数据，研究不同类型仪器对环境噪声的响应，计算3种重力仪的重力噪声水平，同时计算地震频段（200～600 s）的地震噪声等级，并与全国gPhone重力仪的地震噪声等级进行对比。结果表明：1）在频率低于10^-3 Hz时，扣除固体潮和气压改正可以明显改进重力噪声水平；2）相同台站不同仪器重力噪声水平不同，gPhone型重力仪的背景噪声水平低于DZW型重力仪和GS-15型重力仪，其SNM值为3.355；3）2022年全国gPhone重力仪的地震频段噪声水平均值为5.418，蓟县台的噪声水平平均值为3.465，低于全国的噪声水平。研究结果可为3类重力仪观测数据的研究应用提供参考。

This article selects the continuous observation data of three different models of gravimeters(gPhone, DZW, and GS-15) observed at the same site of Jixian seismostation throughout 2022, studies the response of different types of instruments to environmental noise, calculates the gravity noise levels of the three types of gravi meters, calculates the seismic noise levels in the seismic frequency band(200-600 s), and compares them with the seismic noise levels of gPhone gravimeters nationwide. The research results indicate that: 1) when the frequency is below 10^-3 Hz, deducting solid tide and pressure correction can significantly improve the level of gravity noise; 2) The gravity noise levels of different instruments at the same station are different. The background noise level of the gPhone gravimeter is lower than that of the DZW gravimeter and GS-15 gravimeter, with an SNM value of 3.355; 3) The average noise level in the seismic frequency band of the gPhone gravimeter nationwide in 2022 is 5.418, while the average noise level at Jixian station is 3.465, which is lower than the national noise level. The research results can provide reference for the research and application of three types of gravimeter observation data.