  We derive a new QCD sum rule for $D(0^+)$ which has only the $D\pi$ continuum
with a resonance in the hadron side, using the assumption similar to that has
been successfully used in our previous work to the mass of $D_s(0^+)(2317)$.
For the value of the pole mass $M_c=1.38 $ GeV as used in the $D_s(0^+)$ case
we find that the mass of $D(0^+)$ derived from this sum rule is significantly
lower than that derived from the sum rule with the pole approximation. Our
result is in agreement with the experimental dada from Belle.
