The embodiments of the present disclosure provide a power configuration method and a terminal. The method includes: determining a percentage of uplink resource; transmitting with high power when the percentage of uplink resource is less than a first percentage, wherein the high power is higher than a maximum transmitting power of a default power class; transmitting with low power when the percentage of uplink resource is greater than or equal to the first percentage, wherein the low power is not higher than the maximum transmitting power of the default power class.