立足于机关事业单位养老保险顺利“并轨”和可持续发展，研究机构事业单位养老保险缴费一个适度水平，两个内外平衡（养老保险缴费内部供需平衡和外部供需平衡。），三个协调对接（机关事业单位与企业养老保险制度对接，新老养老金水平与工资水平对接，基础养老保险与职业年金对接。），“四个数理模型”（新老制度给付水平衔接平衡模型；新老制度工资水平衔接平衡模型；机关事业单位与企业养老保险水平衔接平衡数理模型；机关事业单位养老保险缴费率适度水平“总平衡模型”），四个整体联动（缴费年限与给付水平联动；个人缴费能力与财政补贴水平联动；老人、中人、新人给付替代率与工作年限联动；政策制定实施与经济社会条件联动）。以养老保险缴费率适度水平为主线，以缴费内外平衡为两翼，以适度水平检验为尺度，以养老保险可持续发展为目标，研究机关事业单位养老保险适度缴费体系及其资金总平衡规律，在此基础上提出实现目标的可操作性政策建议。

Unifying the pension for public institutions successfully and ensuring sustainable development, this paper studies a moderate level of pension contribution for public institutions, two internal and external equilibriums of demand and supply in pension contribution, three connections between the pension system of public institutions and enterprises, pension level and wage level, basic pension and supplementary pension, four balancing mathematical models like joining payment level and wage level from old to new system, joining the pension contribution rate of public institutions and enterprises, four entire integrations among years of pension contribution and payment level, individual paying ability and financial subsidies, distinct payment substitution and working seniority, policy implementation and economic conditions. Under the condition of internal and external balance in pension contribution, this paper is studying moderate level of contribution rate as the main line, using the moderate level testing as the benchmark, ensuring the sustainable development of pension, researching the moderate contribution system and its balance laws, proposing feasible policy proposals.