利用潮汐分析的方法，分析和评价马陵山台洞体形变观测资料的潮汐参数及稳定性，结果表明：①三台倾斜仪的观测精度m_γ均小于0.02，垂直摆倾斜仪和水管倾斜仪精度相当，水平摆倾斜仪精度稍低；相对噪声水平M_l均小于0.02＂，垂直摆倾斜仪最小，年变化较稳定，水平摆倾斜仪噪声最大，水管倾斜仪次之，达到并超过了中国局形变优秀台的标准；②马陵山台伸缩仪的δα_M2/α_M2值，NS向优于泰安台，EW向低于泰安台，但均符合形变Ⅰ类台标准；马陵山台和泰安台伸缩仪的潮汐参量EW向的稳定性均不如NS向；仪器改造后噪声水平M_l明显降低，小于泰安台；③研究还发现，马陵山台仪器方位角存在较大偏差。

The tide analysis method was used to analyze and assess tidal parameters and stability of cavity deformation observation in Malingshan Seismological Station. The results showed that: ①Observation accuracy(m_γ) of three instruments is all less than 0.02, accuracy of the Vertical pendulum tiltmeter is the sams as the water tube tiltmeter, accuracy of the level pendulum tiltmeter is a little low; Noise level(M₁) is all less than 0.02 angle seconds, the Vertical pendulum tiltmeter is the lowest in noise level(M₁), annual cycle is stabilitier, the level pendulum tiltmeter is the largest, the water tube tiltmeter is the second, the observation accuracy of all observation instruments met and surpassed the standard of excellent deformation stations of China Earthquakd Administration; ②The delta alpha M2/alpha M2 of SS-Y extensometer is bettet than Tai’an Seismological Station in NS component. It is lower than Tai’an Seismological Station in EW component, but it all surpassed the standard of class 1 deformation stations of China Earthquakd Administration; Malingshan Seismological Station and Tai’an Seismological Station of SS-Y extensometer in stability of tidal parameters is different, the EW component is all not so stability as NS component. The noise level(M₁) is decreased obviously after transformation, it is lower than Tai’an Seismological Station; ③The study indicated there was obvious deviation for azimuth in station.