This invention relates to an apparatus for intravenous drip and in particular, this invention relates to an apparatus for intravenous drip in which the drip chamber contains a thermocol ball. More particularly, this present invention relates a method for monitoring intravenous drips. Furthermore, this invention also relates to an apparatus for intravenous drip which has the beneficial effects of having saving manpower cost, reducing labor intensity, and having safety and reliability.