Mangrove ecosystems found in the intertidal regions of tropical and subtropical areas are Ecoton or Eco-sensitive zones. They are likely to be early indicators of the effects of climate change. If the rate of sea-level rise is 9~12 cm per 100 years or exceeds the rate of mangrove sediment accretion, mangrove may be under stress or collapse. If the average air temperature increase, the species composition of mangrove forests may change. Mangrove plant development may be accelerated by limited temperature increase, however too high temperature is not beneficial to mangrove leaf development and photosynthesis. Temperature increase could become significant when the cumulative effects of temperature on plant development, and could cause some feedback mechanisms via soil respiration stimulation. The change of precipitation patterns in mangrove area may effect the mangrove ecosystems through influencing soil or water salinity. Including research methods, some research countermeasure suggestions on relationship between mangrove ecosystems of China and climate change are discussed, such as dynamics of greenhouse gases released from mangrove wet lands and effects of elevated CO₂ on mangrove ecosystems, etc.