The invention relates to a plastic ampoule and a colored plastic container. The invention aims at providing a plastic ampoule which can inhibit the volatilization or diffusion of liquid medicine, inhibit a plastic compounding agent from dissolving out of the liquid medicine and also inhibit the generation of palpus and the deformation or damage of opening parts when the plastic ampoule is unsealed. The plastic ampoule 10 provided by the invention comprises a liquid medicine containing part 11, a liquid medicine discharging barrel part 12 and a top 13, wherein the liquid medicine containing part 11 is used for containing the liquid medicine, the liquid medicine discharging barrel part 12 is communicated with the liquid medicine containing part 11 and extends to one side, and the top 13 is used for sealing one side end of the liquid medicine discharging barrel part 12 and the liquid medicine discharging barrel part 12 is provided with a weak part 14 forming a thin wall along the peripheral direction. The liquid medicine containing part 11, the liquid medicine discharging barrel part 12 and the top 13 are made of multi-layer plastic which comprises an interlayer, an inner layer, an outer layer and adhesive layers, wherein the interlayer contains cycloolefin polymers with the glass transition temperature of 60-80 DEG C, the inner layer is laminated at the inner side of the interlayer, the outer layer is laminated on the outer layer of the interlayer, and the adhesive layers are respectively arranged between the interlayer and the inner layer and between the outer layer and the interlayer.
