  In this paper, we construct the $m$-photon-added and $m$-photon-subtracted
coherent states on a sphere. These states are shown to satisfy the usual
conditions of continuity in the label, normalizability and the resolution of
identity. The preparation of the constructed states, as the states of radiation
field is considered. We examine and analyze the nonclassical properties of
these states, including the photon mean number, Mandel parameter and quadrature
squeezing. We find that these states are sub-Poissonian in nature, whereas the
degree of squeezing is reduced (enhanced) by increasing $m$ for the
photon-added (photon-subtracted) coherent states on a sphere.
