The present invention provides a liquid crystal display panel and manufacturing method thereof. The manufacturing method includes: disposing a first and a second substrate oppositely, first substrate comprising a color filter (CF) array area and a first non-display area disposed in peripheral of CF array area, first substrate or second substrate coated with radiation curing agent corresponding to first non-display area; using curing radiation to shine on first substrate from a side of first substrate away from second substrate so that incident curing radiation to CF array area absorbed by CF array area, and incident curing radiation to first non-display area curing radiation curing agent to adhere first and second substrates. The present invention effectively solves insufficient curing problem caused by shielding of metal routes in peripheral of thin film transistor array area and reduces manufacture cost of liquid crystal display panel without UV mask.