The utility model discloses a movable wellhead platform of marine marginal oil field development, its component part includes the platform main part and passes through four spud legs of hydraulic pressure elevating gear connectivity platform main part that the direction of height of following certain spud leg sets up the defeated oil pipe line riser in seabed, installs the jinny in the platform main part in every spud leg outside respectively and fixes a position the anchor, be provided with multiple unit valve, heterogeneous flowmeter, water injection manifold, water injection filter, wellhead control dish, industrial switch, electrical submersible pump pump junction box, extra large cable junction box, lift hydraulic pressure station, electrical winch, electronic remote control gangway ladder, oil and gas production equipment and connection conductor tube's well head supporting structure in the platform main part, conductor tube's upper end installation well head production tree, conductor tube's lower extreme pierces the seabed assigned position and fixes with the subsea wellhead underplate. Its advantage is: can make perfect and satisfy different marine marginal oil field's production demand in the life cycle, still can demolish after throw aside in the oil field and the operation is continued to wet dragging to other oil fields, has fine practicality.