In the past ten years, policy of sharing the higher education cost has been broadly adopted. Its implementation will aggravate the imparity of higher education opportunity, for it has different marginal effects on different students from families which have different payment ability for education. Empirical analysis shows that the current level of higher education tuition has exceeded the payment ability of most of the residents. So we should ensure that our higher education tuition polity be based on the payment ability of our residents. Establishment of an effective assistance system to needy students can be a valid approach to alleviate the negative effects of the policy of sharing the higher education cost.